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.
First N Perfect Squares
Who knows the last digit of pi?
Arrange vector in ascending order
Make a run-length companion vector
Integer Sequence - II : New Fibonacci
Stress-Strain Properties - 4
Scrabble Scores - 6
Inscribed Pentagon? 2
Approximation of Pi (vector inputs)
Cycling — Critical Power
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