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What is the LCM of 1620 and 630?

The lcm of 1620 and 630 is 11340.

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 630
    630 = 2 × 3 × 3 × 5 × 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
  4. LCM = 11340

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