In general, this solution is not valid for single digit numbers.
code won't work for 0,4,8 I just took advantage of test code :(
If input n_str = < '9', then you get Error: Subscript indices must either be real positive integers or logicals.
The Goldbach Conjecture
Find nearest prime number less than input number
Reverse the elements of an array
I Plead the Fifth
Self-similarity 3 - Every other pair of terms
Cycling — Normalized Power
Scrabble Scores - 10
Lights Out 2 - 5x5, 4 moves
The 5th Root
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