|Divisors||1, 2, 4, 5, 10, 20, 25, 50, 100|
|Unicode symbol(s)||C, ⅽ|
100 is the basis of percentages (per cent meaning "per hundred" in Latin), with 100% being a full amount.
100 is the sum of the first nine prime numbers, as well as the sum of some pairs of prime numbers e.g., 3 + 97, 11 + 89, 17 + 83, 29 + 71, 41 + 59, and 47 + 53.
100 is the sum of the cubes of the first four integers (100 = 13 + 23 + 33 + 43). This is a direct consequence of 100 equaling the square of the sum of the first four integers (100 = 102 = (1 + 2 + 3 + 4)2).
26 + 62 = 100, thus 100 is a Leyland number.
100 is an 18-gonal number. It is divisible by the number of primes below it, 25 in this case. It can not be expressed as the difference between any integer and the total of coprimes below it, making it a noncototient. It can be expressed as a sum of some of its divisors, making it a semiperfect number.
There are exactly 100 prime numbers whose digits are in strictly ascending order (e.g. 239, 2357 etc.).
100 is the smallest number whose common logarithm is a prime number (i.e. 10n for which n is prime).
The atomic number of fermium is 100.
The Kármán line lies at an altitude of 100 kilometres above the Earth's sea level and is commonly used to define the boundary between Earth's atmosphere and outer space.
- There are 100 blasts of the Shofar heard in the service of Rosh Hashana, the Jewish New Year.
- A religious Jew is expected to utter at least 100 blessings daily.
The U.S. hundred-dollar bill has Benjamin Franklin's portrait; the "Benjamin" is the largest U.S. bill in print. American savings bonds of $100 have Thomas Jefferson's portrait, while American $100 treasury bonds have Andrew Jackson's portrait.
In other fields
One hundred is also:
- The number of years in a century.
- The number of pounds in an American short hundredweight.
- The number of tiles in a standard Scrabble set for the languages, English, Arabic, Catalan, Czech, Danish, Esperanto, Finnish, Hungarian, Irish, Latin, Malaysian, Norwegian, Polish, Romanian, Slovak, Slovenian, Spanish, Swedish, Turkish.
- In Greece, India, Israel and Nepal, 100 is the police telephone number.
- In Belgium, 100 is the ambulance and firefighter telephone number.
- In United Kingdom, 100 is the operator telephone number.
- Hundred Days, aka the Waterloo Campaign.
- "The First Hundred Days" is an arbitrary benchmark of a President of the United States' performance at the beginning of his or her term.
- 100 is the HTTP status code indicating that the client should continue with its request.
- An "A+" number in the academic grading system in some countries.
When a TV series reaches 100 episodes, it is generally considered viable for syndication. (For shows picked up midseason, this point is generally reached during a prime time series' 5th season).
- The number of yards in an American football field (not including the end zones).
- The number of runs required for a cricket batsman to score a century, a significant milestone.
- The number of points required for a snooker cueist to score a century break, a significant milestone.
- The record number of points scored in one NBA game by a single player, set by Wilt Chamberlain of the Philadelphia Warriors on March 2, 1962.
- The minimum distance in yards for a Par 3 on a golf course
- 1 vs. 100
- AFI's 100 Years...
- 100 Greatest Britons
- 100 Greatest Christmas Moments
- 100 Greatest Kids' TV shows
- Hundred (division)
- Hundred (word)
- Hundred Days
- Hundred Years' War
- List of highways numbered 100
- Top 100
- The Top 100 Crime Novels of All Time
- Top 100 winning pitchers of all time
- 100 Most Influential Books Ever Written
- Insights, September 28, 2011.
- Leo Rosten, The Joys of Yiddish (1968), page 52.
- A spread sheet issued by Spear's
- Wisden Cricketers’ Almanack 2011, pp. 1270-72, lists of double hundreds, hundreds, fastest hundreds etc., ed. Scyld Berry, pub John Wisden & Co Ltd. (April 2011). ISBN 978-1-4081-3130-5.
- ESPN Cricinfo list of centuries http://stats.espncricinfo.com/ci/engine/records/index.html?category=3;class=1
- Wilt Chamberlain. (14 September 2010). In Basketball Legend Chamberlain Dies at 63. Retrieved September 14, 2010 from http://www.washingtonpost.com/wp-srv/sports/nba/daily/oct99/13/chamberlain13.htm
- Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133
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