13
This number is a prime.
Single Curio View: (Seek other curios for this number)
The digit 3
occurs more than any other single-digit ending of a prime
for the first time at 13. [Honaker]
Submitted: 2026-01-30 17:22:00; Last Modified: 2026-01-30 17:29:56.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean