49999
This number is a prime.
The sum of digits of the first 49999 positive integers is exactly 1 million. [Gaydos]
There are no counterexamples to Agoh's conjecture less than n=49999, as of 2003. [Plouffe]
(There are 2 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell