40000...00007 (2324-digits)

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

Single Curio View:   (Seek other curios for this number)
The largest known prime of form 4*10^n+7 (case n=2323), as of 2005. [Benney]

Submitted: 2019-01-04 23:34:11;   Last Modified: 2019-01-04 23:36:23.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell