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What is the LCM of 7 and 405?

The LCM of 7 and 405 is 2835.

Steps to find LCM

  1. Find the prime factorization of 7
    7 = 7
  2. Find the prime factorization of 405
    405 = 3 × 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 = 3 × 3 × 3 × 3 × 5 × 7
  4. LCM = 2835

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