114689
This number is a prime.
The only generalized Cullen emirp less than a googol of the
form p=x*4^x+1, (case x=7). [Loungrides]
114689 is the smallest prime factor of 2^(2^12)+1, or F12
(the 12th Fermat number). [Perrenoud]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell