1009101133

This number is a prime.

+ The smallest prime formed from a single-digit, a double-digit, a triple-digit, and a quadruple-digit prime in descending order, i.e., 1009, 101, 13, 3. [Loungrides]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell