Solutions by everydaycalculation.com

The LCM of 30 and 70 is 210.

- Find the prime factorization of 30

30 = 2 × 3 × 5 - Find the prime factorization of 70

70 = 2 × 5 × 7 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 3 × 5 × 7 - LCM =
**210**

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Find least common multiple (LCM) of: 60 & 140 15 & 35 90 & 210 150 & 350 6 & 14 210 & 490 60 & 70 30 & 140 90 & 70 30 & 210 150 & 70 30 & 350 210 & 70 30 & 490

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