12484...48421 (457-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

+ The largest non-titanic “Peak and Valley” prime, formed from the digits that are powers of 2, i.e., (1248). [Loungrides]

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