139
This number is a prime.
Single Curio View: (Seek other curios for this number)
You cannot build a square pyramidal stack of cannonballs without the top ball with a prime number
of cannonballs greater than 139. [Honaker]
Submitted: 2018-01-18 01:50:00; Last Modified: 2022-01-26 03:27:58.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell