9467
This number is a prime.
Just showing those entries submitted by 'Loungrides': (Click here to show all)
The largest 4-digit prime (emirp) whose sum of the two leftmost digits (9 and 4) equals the sum of the two rightmost digits (6 and 7). [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell