191

This number is a prime.

Single Curio View:   (Seek other curios for this number)
Multiply the even composites 4*6*8 - 1 and get 191 using 3 terms and 2 multiplications. Do the same + 1 and get 193 -- the first set of twin primes using this process. [Haga]

Submitted: 2004-03-25 00:38:15;   Last Modified: 2008-01-30 11:28:00.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell