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What is the LCM of 720 and 1080?

The lcm of 720 and 1080 is 2160.

Steps to find LCM

  1. Find the prime factorization of 720
    720 = 2 × 2 × 2 × 2 × 3 × 3 × 5
  2. Find the prime factorization of 1080
    1080 = 2 × 2 × 2 × 3 × 3 × 3 × 5
  3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

    LCM = 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5
  4. LCM = 2160

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