19735...46657 (27-digits)
This number is a prime.
1973525 8702407697 3231046657
The second smallest (after 65537) generalized Fermat prime b^(2^n)+1 with n = 4.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
1973525 8702407697 3231046657
The second smallest (after 65537) generalized Fermat prime b^(2^n)+1 with n = 4.