101 (number)
a Hundred redirects here. This article is relating to number 101. For the year, to see 101.
101 ( a hundred or cent-un ) is the Entier naturalness which follows 100 and which precedes 102.
In mathematics
a Hundred is:- the 26e Prime number. It forms, with 103, a couple of Prime numbers twins.
- a Prime numbers cousins with 97.
- a Number palindrome, being able to be read as well from left to right as from right to left
- a Prime number single: the period of the decimal expansion of 1/101 is of 4 (0, 0099 0099 0099…) and it is the only prime number in this case
- the sum of five prime numbers consecutive: 13 + 17 + 19 + 23 + 29 = 101
- a Nombre décagonal centered
In other fields
a Hundred is also:- the Atomic number of the Mendelevium, a Actinide
- the number of the Spiral galaxy M101 in the Catalog Messier
- the number of Dalmatien S in the book and the films the 101 dalmatiens
- the number of “room 101” in the novel 1984 of George Orwell
- the emergency Call number of the police force in Belgium.
- historical Years: -101, 101
Zh-yue: 101