153181
This number is a composite.
The smallest multidigit triangular number t such that 3t3 and t3t are both prime. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The smallest multidigit triangular number t such that 3t3 and t3t are both prime. [Bajpai]