This number is a prime.

Single Curio View:   (Seek other curios for this number)
A mark on a small circle, rolling inside one with three times the diameter, traces out a 3-cusped hypocycloid. Euler called it a deltoid because of its resemblance to the Greek letter delta.

Submitted: 1999-09-02 18:40:00;   Last Modified: 2008-05-16 10:52:20.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell