What is the LCM of 15 and 81?
The LCM of 15 and 81 is 405.
Steps to find LCM
- Find the prime factorization of 15
15 = 3 × 5 - Find the prime factorization of 81
81 = 3 × 3 × 3 × 3 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 3 × 3 × 3 × 3 × 5 - LCM = 405
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Find least common multiple (LCM) of: 30 & 162 45 & 243 5 & 27 75 & 405 105 & 567 30 & 81 15 & 162 45 & 81 15 & 243 75 & 81 15 & 405 105 & 81 15 & 567
LCM Calculator
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