271 (two hundred [and] seventy-one) is the natural number after and before .
271 is a twin prime with 269, a cuban prime (a prime number that is the difference of two consecutive cubes), and a centered hexagonal number. It is the smallest prime number bracketed on both sides by numbers divisible by cubes,
After 7, 271 is the second-smallest EisensteinâÂÂMersenne prime, one of the analogues of the Mersenne primes in the Eisenstein integers.
271 is the largest prime factor of the five-digit repunit 11111, and the largest prime number for which the decimal period of its multiplicative inverse is 5:
It is a sexy prime with 277.