The LCM is 420.
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GCF(8, 45, 30) = 1 LCM(8, 45, 30) = 360
Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36.Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.GCF (36, 60, 84) = 12
The GCF is 1. The LCM is 444.
Because 252 is a multiple of 12, 12 and 252 are one pair (252 = 12 x 21 = 252 x 1)Another pair is 36 and 84 (252 = 36 x7 and 84 x 3)252 = 3 x 3 x 4 x 7 = 12 x 3 x 7, so only 36 and 84 are possible multiples of 12.
The LCM is the product of the two numbers divided by their HCF. With 12 and 13, the HCF is 1. Therefore, the LCM will equal the product. With 12 and 14, the HCF is 2. Therefore, the LCM will be half of the product.