# 74 arithmetic/digits/prime/prefix.one.p

## Description

This article is from the Puzzles FAQ,
by Chris Cole chris@questrel.questrel.com and Matthew Daly
mwdaly@pobox.com with numerous contributions by others.

# 74 arithmetic/digits/prime/prefix.one.p

2 is prime, but 12, 22, ..., 92 are not. Similarly, 5 is prime

whereas 15, 25, ..., 95 are not. What is the next prime number

which is composite when any digit is prefixed?

arithmetic/digits/prime/prefix.one.s

149

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