1791731
This number is a prime.
Starts the smallest prime quadruple where only the end digits of multidigit primes (1,3,7,9) appear in any of its four terms. [Punches]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
Starts the smallest prime quadruple where only the end digits of multidigit primes (1,3,7,9) appear in any of its four terms. [Punches]