2, 2, 5, and 7
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The prime numbers (factors) of 140 are: 2,5,7
It is 7 because as a product of its prime factors: 2*2*5*7 = 140 or as 22*5*7 = 140
2, 5 and 7.
140 is a composite number because it has more than two factors
(140) = 2 * (70) (70) = 2 * (35) (35) = 5 * 7 Prime factors of 140: 2,2,5 and 7