1187
This number is a prime.
Single Curio View: (Seek other curios for this number)
1187 concatenated with either the previous prime (1181) in order or the next prime (1193) in order is prime. This is the smallest 4-digit number with this property. [Mix]
Submitted: 2008-12-10 21:42:19; Last Modified: 2008-12-18 00:27:54.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell