61 (sixty-one) is the natural number following 60 and preceding 62. In Mathematics, a natural number (also called counting number) can mean either an element of the set (the positive Integers or an 60 ( sixty) is the Natural number following 59 and preceding 61. 62 ( sixty-two) is a Natural number following 61 and preceding 63.
| Cardinal | 61 sixty-one |
| Ordinal | 61st sixty-first |
| Factorization | prime |
| Divisors | 1, 61 |
| Roman numeral | LXI |
| Binary | 111101 |
| Hexadecimal | 3D |
Contents |
In mathematics
It is the 18th prime number. 59 ( fifty-nine) is the Natural number following 58 and preceding 60. 60 ( sixty) is the Natural number following 59 and preceding 61. 62 ( sixty-two) is a Natural number following 61 and preceding 63. 63 ( sixty-three) is a Natural number following 62 and preceding 64. 64 ( sixty-four) is the Natural number following 63 and preceding 65. 65 ( sixty-five) is the Natural number following 64 and preceding 66. 66 ( sixty-six) is the Natural number following 65 and preceding 67. 67 ( sixty-seven) is the Natural number following 66 and preceding 68. 68 ( sixty-eight) is the Natural number following 67 and preceding 69 In mathematics Sixty-eight is a Nontotient 69 ( sixty-nine) is a number following 68 and preceding 70. In mathematics sixty-nine is the twentieth distinct Biprime 70 ( seventy) is the Natural number following 69 and preceding 71. This is a list of articles about Numbers ( not about Numerals. The integers (from the Latin integer, literally "untouched" hence "whole" the word entire comes from the same origin but via French "Twenty" redirects here For the village in England, see Twenty Lincolnshire. 30 ( thirty) is the Natural number following 29 and preceding 31. 40 ( forty) is the Natural number following 39 and preceding 41. This article discusses the number fifty. For the year 50 CE see 50. 60 ( sixty) is the Natural number following 59 and preceding 61. 70 ( seventy) is the Natural number following 69 and preceding 71. 80 ( eighty) is the Natural number following 79 and preceding 81. 90 ( ninety) is the Natural number preceded by 89 and followed by 91. This article describes cardinal numbers in mathematics For cardinals in linguistics see Names of numbers in English. In Set theory, an ordinal number, or just ordinal, is the Order type of a Well-ordered set. In Mathematics, factorization ( also factorisation in British English) or factoring is the decomposition of an object (for In Mathematics, a prime number (or a prime) is a Natural number which has exactly two distinct natural number Divisors 1 In Mathematics, a divisor of an Integer n, also called a factor of n, is an integer which evenly divides n without Roman numerals are a Numeral system originating in ancient Rome, adapted from Etruscan numerals. The binary numeral system, or base-2 number system, is a Numeral system that represents numeric values using two symbols usually 0 and 1. In Mathematics and Computer science, hexadecimal (also base -, hexa, or hex) is a Numeral system with a In Mathematics, a prime number (or a prime) is a Natural number which has exactly two distinct natural number Divisors 1 The previous is 59, with which it comprises a twin prime. 59 ( fifty-nine) is the Natural number following 58 and preceding 60. A twin prime is a Prime number that differs from another prime number by Two. Sixty-one is a cuban prime of the form p = (x3 − y3) / (x − y),x = y + 1. A cuban prime is a Prime number that is a solution to one of two different specific equations involving third powers of x and y.
Sixty-one might be the largest prime that divides the product of the next two primes plus 1. If there is a larger such prime, it would have to be greater than 179424673.
Sixty-one is the sum of two squares, 52 + 62, and it is also a centered square number, a centered hexagonal number and a centered decagonal number. In Elementary number theory, a centered square number is a centered Figurate number that gives the number of dots in a square with a dot in the A centered hexagonal number, or hex number, is a centered Figurate number that represents a Hexagon with a dot in the center and all other dots A centered decagonal number is a centered Figurate number that represents a Decagon with a dot in the center and all other dots surrounding the center
Since 8! + 1 is divisible by 61 but 61 is not one more than a multiple of 8, 61 is a Pillai prime. A Pillai prime is a Prime number p for which there is an integer n > 0 such that the Factorial of n is one less than a multiple of In the list of Fortunate numbers, 61 occurs thrice, since adding 61 to either the tenth, twelfth or seventeenth primorial gives a prime number (namely 6469693291, 7420738134871 and 1922760350154212639131). A Fortunate number, named after Reo Fortune, for a given positive Integer n is the smallest integer m > 1 such that p n The primorial has two similar but distinct meanings The name is attributed to Harvey Dubner and is a Portmanteau of prime and Factorial
It is also a Keith number, because it recurs in a Fibonacci-like sequence started from its base 10 digits: 6, 1, 7, 8, 15, 23, 38, 61. In Mathematics, a Keith number or repfigit number (short for rep etitive F ibonacci-like d' igit') is an Integer N . .
In science
The chemical element with the atomic number 61 (promethium), a lanthanide, is the element with the secondary lowest ordinal number, which does not possess any stable isotopes. See also List of elements by atomic number In Chemistry and Physics, the atomic number (also known as the proton Promethium (prəˈmiːθiəm/ /proʊˈmiːθiəm is a Chemical element with the symbol Pm and Atomic number 61 The promethium preceding element with atomic number 60 (neodymium) and the promethium following element 62 (samarium) have all stable isotopes. See also List of elements by atomic number In Chemistry and Physics, the atomic number (also known as the proton Neodymium (ˌniːoʊˈdɪmiəm is a Chemical element with the symbol Nd and Atomic number 60 Samarium (səˈmɛəriəm is a Chemical element with the symbol Sm and Atomic number 62 Stable isotopes are chemical isotopes that are not Radioactive (to current knowledge
Astronomy
- Messier object M61, a magnitude 10. The Messier objects are a set of Astronomical objects first listed by French astronomer Charles Messier in his "Catalogue des Nébuleuses The apparent magnitude ( m) of a celestial body is a measure of its Brightness as seen by an observer on Earth, normalized to the value 5 galaxy in the constellation Virgo
- The New General Catalogue object NGC 61, a double spiral galaxy in the constellation Pisces
- The Saros number of the solar eclipse series which began on -973 May 10 and ended on 289 June 5. A galaxy is a massive gravitationally bound system consisting of Stars an Interstellar medium of gas and dust, and Dark matter In common usage a constellation is a group of celestial bodies that are connected together in some arrangement typically stars to form a visible figure or picture Virgo ( Virgin, symbol, Unicode ♍ is a Constellation of the Zodiac. The New General Catalogue ( NGC) is the best-known catalogue of Deep sky objects in Amateur astronomy. A spiral galaxy is a Galaxy belonging to one of the three main classes of galaxy originally described by Edwin Hubble in his 1936 work “The Realm of the Pisces (ˈpaɪsiːz Fish (plural symbol, Unicode ♓ is a Zodiac Constellation which lies between Aquarius to the west and Aries Saros or Sáros may refer to Saros cycle, a method for predicting solar eclipses SS Saros, a shipwreck off the southeast coast A solar eclipse occurs when the Moon passes between the Sun and the Earth so that the Sun is wholly or partially obscured Events 1291 - Scottish Nobles recognize the authority of Edward I of England. Events By Place Roman Empire Constantius Chlorus marries Flavia Maximiana Theodora, stepdaughter of Maximian, after Events 70 - Titus and his Roman Legions breach the middle wall of Jerusalem in the Siege of Jerusalem The duration of Saros series 61 was 1262. 1 years, and it contained 71 solar eclipses.
- The Saros number of the lunar eclipse series which began on -870 October 20 and ended on 609 March 26. A lunar eclipse occurs whenever the Moon passes through some portion of the Earth's shadow Events 1740 - Maria Theresa takes the throne of Austria. France, Prussia, Bavaria and Saxony Events By Place Asia Edessa is taken by the Sassanids. The tax Census of the Sui Dynasty Events 1026 - Pope John XIX crowns Conrad II as Holy Roman Emperor. The duration of Saros series 61 was 1478. 4 years, and it contained 83 lunar eclipses.
- 61 Ursae Majoris is located about 31. 1 light-years from Sol. [1]
- 61 Cygni was christened the "Flying Star" in 1792 by Giuseppe Piazzi (1746-1826) for its unusually large proper motion. [2]
In other fields
Sixty-one is:
- The number of the French department Orne
- The code for international direct dial phone calls to Australia
- Sixty-one thousand (61,000) darics of gold was apparently donated as freewill offerings for the building of a new Temple in Jerusalem when the Jewish exiles returned from their Babylonian captivity: As soon as they came to the house of the LORD in Jerusalem, some of the heads of the families made freewill offerings for the house of God, to erect it on its site. In the context of the political and geographic organization of France and many of its former colonies a department (département depaʁtǝmɑ̃ is an Administrative division Orne is a department in the northwest of France named after the Orne River. This is a list of country calling codes defined by ITU-T recommendation E Within Phonetics, a phone is a speech sound or gesture considered a physical event without regard to its place in the Phonology of a Language For a topic outline on this subject see List of basic Australia topics. Etymology The Hebrew name given in Scripture for the building is Beit HaMikdash or "The Holy House" and only the Temple in Jerusalem is referred to by this name The Babylonian captivity, Babylonian exile, is the name typically given to the deportation and exile of the Jews of the ancient Kingdom of Judah to According to their resources they gave to the building fund sixty-one thousand darics of gold, five thousand minas of silver, and one hundred priestly robes. (Ezra chapter 2, verses 68 and 69 (New Revised Standard Version of the Bible); Nehemiah chapter 7, verses 70 to 72 has a slightly different record, though that record may be partly intended to reflect donations to more than simply Temple building construction, or Nehemiah's book may simply be a varying account (Nehemiah lists the governor as donating 1,000 darics of gold, fifty basins, and 530 priestly robes along with the ancestral heads of families donating 20,000 darics of gold, 2200 minas of silver, and the rest of the people who also gave 20,000 darics of gold, 2000 minas of silver and 67 priestly robes. The Book of Ezra is a book of the Bible in the Old Testament and Hebrew Tanakh. The New Revised Standard Version ( NRSV) of the Bible, released in 1989, is a thorough revision of the Revised Standard Version (RSV The Book of Nehemiah is a book of the Hebrew Bible, historically regarded as a continuation of the Book of Ezra, and is sometimes called the second book
- 61*, a 2001 baseball movie directed by Billy Crystal
- Sixty-one is a number often related to the Colonel's insane speech in Metal Gear Solid 2: Sons of Liberty
- The Highway 61 Blues Festival occurs in June in Leland, Massachusetts
- Part 61 is a law created by the FAA regarding medical exams. 61* is an American Baseball movie, made for HBO, directed by Billy Crystal and written by Hank Steinberg. Year 2001 ( MMI) was a Common year starting on Monday according to the Gregorian calendar. This list of sports films is a compilation of Films in the genre covering Sports activities William Edward "Billy" Crystal (born March 14, 1948) is an American Golden Globe Award -nominated and Emmy Award -winning (commonly abbreviated as MGS2) is a stealth action Video game directed by Hideo Kojima, developed by Konami Computer Entertainment Highway 61 may refer to In modern culture ''Highway 61'' (film, a film by Bruce McDonald ''Highway 61'' (soundtrack, the accompanying The Commonwealth of Massachusetts ( is a state located in the New England region of the northeastern United States. The Federal Aviation Administration ( FAA) is an agency of the United States Department of Transportation with authority to regulate and oversee all aspects of This law has often come under attack by AOPA. The Aircraft Owners and Pilots Association (AOPA is a non-profit Political organization whose membership consists mainly of General aviation
- Highway 61 Revisited is a Bob Dylan album
- The P-61 is the Northrop designed fighter first designated as the XP-61. Highway 61 Revisited is Bob Dylan 's sixth studio album released in 1965 by Columbia Records. Bob Dylan (born Robert Zimmerman, May 24 1941 in Duluth, Minnesota) is an American singer-songwriter author poet and painter who has been a major WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout It first flew on May 26, 1942. It is also known as the Black Widow as it was the first fighter aircraft designed to be a night fighter
- Sixty 1 brand tobacco produced by Nationwide Tobacco
- At age 61, W. C. Fields starred in Never Give a Sucker an Even Break 1941
- At age 61, President Harry Truman decided to drop atom bomb in 1945
- At age 61, President Richard Nixon, resigned the presidency in 1974. Never Give a Sucker an Even Break is a 1941 Universal Pictures Comedy film starring W Year 1941 ( MCMXLI) was a Common year starting on Wednesday (the link will display 1941 calendar of the Gregorian calendar. A nuclear weapon is an explosive device that derives its destructive force from Nuclear reactions either fission or a combination of fission and fusion. Year 1945 ( MCMXLV) was a Common year starting on Monday (link will display the full calendar Year 1974 ( MCMLXXIV) was a Common year starting on Tuesday (link will display full calendar of the 1974 Gregorian calendar. He was succeed by Gerald Ford, also age 61
- 61A is the London address of [argot Wendice (Grace Kelly) and[Tony Wendice](Ray Milland) in the movie "Dial M for Murder"
- 1 Liberty Place is Philadelphia's tallest building at 61 stories
In sports
- New York Yankees Roger Maris hit 61 home runs in 1961
- Nolan Ryan and Tom Seaver each had 61 career shutouts
- Hockey great Wayne Gretzky holds or shares 61 NHL records (40 for regular season, 15 for Stanley Cup playoff and 6 for All-Star Games)
- Los Angeles Lakers' Elgin Baylor set a record for 61 points in a NBA finals game against the Boston Celtics (April 14, 1962)
- Rick Nash is number 61 for the CBJ
Historical years
61 A.D., 61 B.C., 1961, 2061, etc. Gerald Rudolph Ford Jr (July 14 1913 December 26 2006 was the thirty-eighth President of the United States, serving from 1974 to 1977 and the fortieth Vice President London ( ˈlʌndən is the capital and largest urban area in the United Kingdom. Grace Patricia Kelly (later Grace Princess of Monaco; November 12 1929 &ndash September 14 1982 was an Academy Award -winning American film and Ray Milland ( January 3, 1907 - March 10, 1986) was a Welsh Actor and director who worked primarily in the Dial M for Murder ( 1954) is a Howcatchem film directed by Alfred Hitchcock starring Grace Kelly, Ray Milland, and Philadelphia (ˌfɪləˈdɛlfiə The New York Yankees are a professional baseball team based in the borough of The Bronx, in New York City, New York. Roger Eugene Maris ( September 10 1934 &ndash December 14 1985) was an American Right fielder in Major League Baseball Lynn Nolan Ryan Jr (born January 31, 1947 in Refugio, Texas) is a retired American Right-handed Pitcher in George Thomas Seaver (born November 17, 1944) is a former right-handed Major League Baseball Pitcher who broke into the major leagues in and Wayne Douglas Gretzky, OC (born January 26 1961 is a retired Canadian professional Ice hockey player The National Hockey League ( NHL) is a professional Ice hockey league composed of 30 teams in North America The Los Angeles Lakers are a National Basketball Association (NBA team based in Los Angeles, California. Elgin Gay Baylor (born September 16 1934 in Washington DC) is a retired American basketball player who played Richard Nash (born June 16 1984) is a Canadian professional Ice hockey player and team captain of the Columbus Blue Jackets Year 61 was a Common year starting on Thursday (link will display the full calendar of the Julian calendar. Year 61 BC was a year of the pre-Julian calendar. Events By place Rome September 29 — Pompey the Great Year 1961 ( MCMLXI) was a Common year starting on Sunday (link will display full calendar of the Gregorian calendar. Notable predictions and known events 2061 Expected expiration of the Singapore-Malaysia Water Agreement.
References
- R. Crandall and C. Pomerance (2005). Prime Numbers: A Computational Perspective. Springer, NY, 2005, p. 79.
External links
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