Definition:Prime Power

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Definition

A prime power $p^n$ is a positive integer which is a prime number $p$ raised to the power $n$.


The list of prime powers begins:

$1, 2, 3, 4, 5, 7, 8, 9, 11, 13, 16, 17, 19, 23, 25, 27, 29, 31, 32, 37, 41, \ldots$

This sequence is A000961 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).