11
This number is a prime.
Single Curio View: (Seek other curios for this number)
Sunspot activities seem to follow an 11-year cycle.
Submitted: 1999-09-02 23:40:00; Last Modified: 2008-01-30 17:19:11.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell