This number is a prime.

Single Curio View:   (Seek other curios for this number)
213466917 - 1 is the first prime number to be found to have more digits than the year it was discovered squared, i.e., more than 20012. [Luhn]

Submitted: 2001-12-07 16:26:18;   Last Modified: 2008-07-31 21:11:20.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell