115921
This number is a composite.
The smallest triangular number that is simultaneously pseudoprime to base 2, 3, 5, 7, 11. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The smallest triangular number that is simultaneously pseudoprime to base 2, 3, 5, 7, 11. [Bajpai]