What is the LCM of 21 and 35?
The LCM of 21 and 35 is 105.
Steps to find LCM
- Find the prime factorization of 21
21 = 3 × 7 - Find the prime factorization of 35
35 = 5 × 7 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 3 × 5 × 7 - LCM = 105
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Find least common multiple (LCM) of: 42 & 70 63 & 105 105 & 175 147 & 245 3 & 5 42 & 35 21 & 70 63 & 35 21 & 105 105 & 35 21 & 175 147 & 35 21 & 245
LCM Calculator
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