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What is the LCM of 1225 and 784?

The LCM of 1225 and 784 is 19600.

Steps to find LCM

  1. Find the prime factorization of 1225
    1225 = 5 × 5 × 7 × 7
  2. Find the prime factorization of 784
    784 = 2 × 2 × 2 × 2 × 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 × 2 × 2 × 5 × 5 × 7 × 7
  4. LCM = 19600

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