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What is the LCM of 63 and 189?

The lcm of 63 and 189 is 189.

Steps to find LCM

  1. Find the prime factorization of 63
    63 = 3 × 3 × 7
  2. Find the prime factorization of 189
    189 = 3 × 3 × 3 × 7
  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 × 7
  4. LCM = 189

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