36484957213536676883
This number is a prime.
The largest left-truncatable prime (ending with 3) that becomes composite by adding a digit to
the left end. [Weichsel]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The largest left-truncatable prime (ending with 3) that becomes composite by adding a digit to
the left end. [Weichsel]