237593
This number is a composite.
The least integer such that the sum of its digits in every base B = 2, 3, 4, 5, ... 15, 16 is prime. [Crespi de Valldaura]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The least integer such that the sum of its digits in every base B = 2, 3, 4, 5, ... 15, 16 is prime. [Crespi de Valldaura]