1439
This number is a prime.
Just showing those entries submitted by 'Patterson': (Click here to show all)
2!*3!*5! - 1 is an emirp with prime digital sum. [Patterson]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
Just showing those entries submitted by 'Patterson': (Click here to show all)
2!*3!*5! - 1 is an emirp with prime digital sum. [Patterson]