Solutions by everydaycalculation.com

The LCM of 420 and 2700 is 18900.

- Find the prime factorization of 420

420 = 2 × 2 × 3 × 5 × 7 - Find the prime factorization of 2700

2700 = 2 × 2 × 3 × 3 × 3 × 5 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 2 × 3 × 3 × 3 × 5 × 5 × 7 - LCM =
**18900**

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Find least common multiple (LCM) of: 840 & 5400 210 & 1350 1260 & 8100 140 & 900 84 & 540 840 & 2700 420 & 5400 1260 & 2700 420 & 8100 2100 & 2700 2940 & 2700

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