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What is the LCM of 625 and 686?

The LCM of 625 and 686 is 428750.

Steps to find LCM

  1. Find the prime factorization of 625
    625 = 5 × 5 × 5 × 5
  2. Find the prime factorization of 686
    686 = 2 × 7 × 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 × 5 × 5 × 5 × 5 × 7 × 7 × 7
  4. LCM = 428750

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