Migration complete - please let us know if anything isn't working.

# 467

This number is a prime.

Just showing those entries submitted by 'Worrom': (Click here to show all)

The first two-loops-in-digits prime p whose sum of digits equals the number of two-loops-in-digits primes less than or equal to p. Note that the sum of digits = 4*6-7. [Worrom]

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