53300...00001 (6659-digits)
This number is a prime.
Single Curio View: (Seek other curios for this number)
9985*720^2329+1 is prime. Note that 9985 is a Chiliagonal number and 720=6!. Also the sum of digits as well as the sum of squared digits of 9985*720^2329+1 are both prime. [Earls]
Submitted: 2004-09-03 08:41:35; Last Modified: 2014-08-09 15:58:22.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell