galois.is_prime_power

galois.is_prime_power(n: int) → bool

Determines if \(n\) is a prime power \(n = p^k\) for prime \(p\) and \(k \ge 1\).

Parameters

n

An integer.

Returns

True if the integer \(n\) is a prime power.

See also

is_perfect_power, is_prime

Notes

There is some controversy over whether \(1\) is a prime power \(p^0\). Since \(1\) is the \(0\)-th power of all primes, it is often regarded not as a prime power. This function returns False for \(1\).

Examples

In [1]: galois.is_prime_power(8)
Out[1]: True

In [2]: galois.is_prime_power(6)
Out[2]: False

In [3]: galois.is_prime_power(1)
Out[3]: False

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Last update: May 18, 2022