3 x 3 x 5 = 45
2 x 5 x 5 = 50
2 x 3 x 3 x 5 x 5 = 450, the LCM
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The prime factorization of 45 is 3 x 3 x 5. To find an LCM it is necessary to compare and combine that prime factorization with at least one other.
45 = 32 × 5
23 x 5 = 40 32 x 5 = 45
prime factorization of 4545 = 3 * 1515 = 3 * 5so prime factors are 3,3,5
Prime factorization of 45 is 3x3x5. Prime factorization of 65 is 5x13.