7597
This number is a composite.
Single Curio View: (Seek other curios for this number)
The only 4-digit semi-prime with prime factors emirps, 7597 = 71 * 107, whose the reversal, i.e., 7957, is also a semi-prime with prime factors the twins of the previous prime factors, i.e., 7957 = 73 *109. [Loungrides]
Submitted: 2015-10-18 07:22:59; Last Modified: 2019-04-13 14:05:28.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell