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Anonymous
prime factorization of 45
45 = 3 * 15
15 = 3 * 5
so prime factors are 3,3,5
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3 x 5 = 15 No exponents required.
It is: 2*53 = 250
32 x 7 = 63
23 x 5 = 40
2 x 52 = 50