# 19421

This number is a prime.

Just showing those entries submitted by 'Atwood': (Click here to show all)

19421 is the lowest number that can be added to the quadratic n^2+n such that the expression will never give a number divisible by any prime from 2 to 41. [Atwood]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell