Prime Prime


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The "Prime Prime" is a prime number that is the factor of the most numbers in a given list. Can you find the Prime prime in each list?

For example, for the list {2, 3, 5, 6, 9}, the answer is 3, since its a factor of 3, 6, and 9, while 2 is only a factor of 2 and 6.

Note: Each number N in a list will be in the range 2 <= N < 100.

Challenge

Find and print the "Prime prime" in each list.

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