This number is a prime.

Single Curio View:   (Seek other curios for this number)
It is impossible to arrange 7 circles of the same diameter so that they each 'kiss', or touch, a central circle, also of the same diameter. [Collins]

Submitted: 2020-02-09 11:19:43;   Last Modified: 2020-02-09 11:20:53.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell