131
This number is a prime.
Single Curio View: (Seek other curios for this number)
131 is the smallest prime fully auto-insertable (into all of
its internal positions), one at a time. Accordingly, the
following two integers are primes: 1'131'31, 13'131'1 [Rivera]
Submitted: 2020-06-01 11:51:12; Last Modified: 2020-06-01 14:57:09.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell