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What is the LCM of 1620 and 6615?

The lcm of 1620 and 6615 is 79380.

Steps to find LCM

  1. Find the prime factorization of 1620
    1620 = 2 × 2 × 3 × 3 × 3 × 3 × 5
  2. Find the prime factorization of 6615
    6615 = 3 × 3 × 3 × 5 × 7 × 7
  3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

    LCM = 2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 7
  4. LCM = 79380

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