100225441
This number is a prime.
The smallest prime formed by concatenating the squares of three consecutive triangular numbers: {10^2, 15^2, 21^2}. [Jha]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The smallest prime formed by concatenating the squares of three consecutive triangular numbers: {10^2, 15^2, 21^2}. [Jha]