53
This number is a prime.
Single Curio View: (Seek other curios for this number)
53 is the very only prime to be formed by the concatenation of two twin primes. [Olry]
Submitted: 2021-02-27 19:58:02; Last Modified: 2021-02-27 23:01:10.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell