95103...66099 (25-digits)

This number is a prime.

                                                 95103 2194931845 7733566099

+ This prime starts the largest known Cunningham chain of length 14 as of 2008: 9510321949318457733566100 * 2^n - 1, for n = 0 to 13. [Andersen]

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