1423

This number is a prime.

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

+ The smallest 4-digit prime whose sum of the two leftmost digits (1 and 4) equals the sum of the two rightmost digits (2 and 3). [Forouhari]

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