946
This number is a composite.
Single Curio View: (Seek other curios for this number)
946 is the only three-digit number m such that the reversal
of concatenation of the first m natural numbers is prime. [Firoozbakht]
Submitted: 2004-06-24 15:26:54; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell