19441
This number is a prime.
19441 is the smallest prime of the form p+1=2*prime, p+2=3*prime,
p+3=4*prime and p+4=5*prime. [Marot]
(There are 2 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell