# 1013

This number is a prime.

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The smallest 4-digit prime p whose the reversal of square is equal to the square of the reversal of p, i.e., 1013^2 = 1026169 and R(1013^2) = 9616201 = 3101^2. [Loungrides]

1013 is the smallest 4-digit prime that starts a run of seven consecutive primes where between any two successive primes, exactly one digit changes (i.e., 1013, 1019, 1021, 1031, 1033, 1039, 1049). Can you find a run of more than seven consecutive primes where between any two successive primes exactly one digit changes? [Loungrides]

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