141
This number is a composite.
Single Curio View: (Seek other curios for this number)
n x 2n + 1 is a Cullen prime if n = 141. The largest known case if n is palindromic.
Submitted: 1999-09-02 23:40:00; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell