4649

This number is a prime.

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The smallest composite-digit prime whose prime factors of its digits form another prime when they are concatenated left-to-right. [Honaker]

Submitted: 2000-06-23 14:32:30;   Last Modified: 2010-12-13 17:18:13.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell