Write a function that will multiply every prime number in the array or matrix by two, leaving all other numbers the same, and return that de-primed array or matrix. One will be treated as prime in this problem.
One in not prime!!!
And therefore should not become de-primed.
given 3 sides, find area of this triangle
Back to basics 10 - Max Float
Test if two numbers have the same digits
Basic arrays operations.
Self-similarity 1 - Every other term
5th Time's a Charm
Scrabble Scores - 11
Pattern Recognition 3 - Variable Unit and Array Length (including cell arrays)
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