This number is a prime.
Single Curio View: (Seek other curios for this number)The largest Pell number (coincidentally prime) of the form x2 + 1. Note that 5 = 22 + 1, where 1 and 2 are the two other Pell numbers of this form. [Capelle]
Submitted: 2009-06-30 07:29:37; Last Modified: 2009-06-30 12:47:34.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell