# 7639

This number is a prime.

Single Curio View: (Seek other curios for this number)

The largest 4-digit prime formed by inserting between the digits of a double-digit prime (emirp) the product of its digits. Note that its reversal is a 2-sphenic number, i.e., 9367 = 17 × 19 × 29, whose the concatenation in order of prime factors, i.e., 171929, is an emirp. [Loungrides]
Submitted: 2020-02-22 19:37:17; Last Modified: 2020-06-01 04:01:21.

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