SOLUTION: which of the following numbers are composit? 0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105

Algebra ->  Divisibility and Prime Numbers  -> Lessons -> SOLUTION: which of the following numbers are composit? 0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105      Log On


   



Question 38090: which of the following numbers are composit?
0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105

Answer by fractalier(6550) About Me  (Show Source):
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Those nmbers which can be factored into numbers other than itself and one are composite.
Thus, 15, 49, 55, 87, 91 and 105 are composite.
Aside from 0 and 1, the rest are prime.