What is the LCM of 21 and 60?
The LCM of 21 and 60 is 420.
Steps to find LCM
- Find the prime factorization of 21
21 = 3 × 7 - Find the prime factorization of 60
60 = 2 × 2 × 3 × 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 × 5 × 7 - LCM = 420
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Find least common multiple (LCM) of: 42 & 120 63 & 180 7 & 20 105 & 300 147 & 420 42 & 60 21 & 120 63 & 60 21 & 180 105 & 60 21 & 300 147 & 60 21 & 420
LCM Calculator
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