One in not prime!!!
And therefore should not become de-primed.
Better bullseye matrix
Find the sum of the elements in the "second" diagonal
Find nearest prime number less than input number
Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Weighted Gold/Silver Standard
Scrabble Scores - 8
Pattern Recognition 2 - Known Unit Length, Various Array Length (including cell arrays)
Divisible by n, prime divisors (including powers)
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