7667
This number is a composite.
Single Curio View: (Seek other curios for this number)
The only 4-digit 2-sphenic palindrome that is transformed into another 2-sphenic palindrome upon the insertion of a single 0 in the middle, i.e., 7667 = 11 × 17 × 41 and 76067 = 29 × 43 × 61. [Loungrides]
Submitted: 2017-08-01 15:16:31; Last Modified: 2020-02-08 15:08:09.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell