Solutions by everydaycalculation.com

The lcm of 21 and 50 is 1050.

- Find the prime factorization of 21

21 = 3 × 7 - Find the prime factorization of 50

50 = 2 × 5 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2 × 3 × 5 × 5 × 7 - LCM =
**1050**

Find least common multiple (lcm) of: 42 & 100 63 & 150 105 & 250 147 & 350 42 & 50 21 & 100 63 & 50 21 & 150 105 & 50 21 & 250 147 & 50 21 & 350

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