Write a function to find the 5th root of a number.
It sounds easy, but the typical functions are not allowed (see the test suite), so you'll need to find a non-standard method to solve the problem.
Longest Divisor Run
Number of Even Elements in Fibonacci Sequence
Van Eck's Sequence's nth member
Lights Out 1 - 5x5, 3 moves
Divisible by n, Truncated-number Divisors
Divisible by 3
Divisible by n, Composite Divisors
Tic-Tac-Logic - Solution Checker
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