67

This number is a prime.

Just showing those entries submitted by 'Capelle': (Click here to show all)

John Pilkins ©2003
+ The largest known prime number p for which the decimal expansion of 2p does not contain any pair of consecutive equal digits. It's also the case for the decimal expansion of 3p. [Capelle]

+ The largest known prime number p for which the decimal expansion of 2p does not contain any zero. [Capelle]

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