1990474529917009
This number is a prime.
199047 4529917009
The smallest prime formed from the reversal of a composite Mersenne number (2^53-1). [Rivera]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
199047 4529917009
The smallest prime formed from the reversal of a composite Mersenne number (2^53-1). [Rivera]