8539
This number is a prime.
8539 is the smallest prime number p with this property: the
sum of all primes up to p is divisible by each of the first
five primes. That is, 2 + 3 + 5 + ... + 8539 (= 4218060) is
divisible by 2, 3, 5, 7, and 11. The next three primes of
this kind are 26407, 87509, and 92347. [Keith]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell