12200...00221 (149-digits)
This number is a prime.
122000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000
0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000221
122*10^146+221 is prime. Note that 122*10^2396+221 is a Fermat and Lucas PRP. [Earls]
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell