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View Full Version : Which does not belong - 13, 7, 29, 13, 19, 5, 22

Mandy1970
May 19, 2010, 01:57 PM
This question is on a daily quiz... And it has got me stumped..
donf
May 19, 2010, 02:25 PM
I would say 22.

22 is not a prime number, all of the other numbers are examples of prime numbers.