19937

This number is a prime.

+ The largest known Mersenne prime exponent whose digits are all odd. Bryant Tuckerman found M(19937) using an IBM 360/91 computer in 1971.

+ The commonly used variant of Mersenne Twister, MT19937, is a pseudorandom number generator designed to have a period of 2^19937-1.

+ 19937 is the largest known Mersenne circular prime exponent. [Harrison]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell