This number is a prime.

+ If the digits in the equation 228^2 = 11^3 + 37^3 are strung out thusly: 2282113373, the resulting number is prime. Note that 228^2 is the smallest square equal to the sum of two prime cubes. [Gezgin]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell