Best Answer

lcm(3, 7, 15) = 105.

3 = 3

7 = 7

15 = 3 x 5

lcm = 3 x 5 x 7 = 105

Q: What is the LCM of 3 7 and 15?

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The LCM is 105.

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The LCM of 7 and 15 is 105.The prime factorization of 7 = 7The prime factorization of 15 = 3 * 5The least common multiple is the product of the pair divided by their GCF, which is 1.= 3 * 5 * 7= 105Their product.