What is the LCM of 18 and 9?
The LCM of 18 and 9 is 18.
Steps to find LCM
- Find the prime factorization of 18
18 = 2 × 3 × 3 - Find the prime factorization of 9
9 = 3 × 3 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 3 × 3 - LCM = 18
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Find least common multiple (LCM) of: 36 & 18 54 & 27 6 & 3 90 & 45 126 & 63 36 & 9 18 & 18 54 & 9 18 & 27 90 & 9 18 & 45 126 & 9 18 & 63
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