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What is the LCM of 13 and 20?

The LCM of 13 and 20 is 260.

Steps to find LCM

  1. Find the prime factorization of 13
    13 = 13
  2. Find the prime factorization of 20
    20 = 2 × 2 × 5
  3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

    LCM = 2 × 2 × 5 × 13
  4. LCM = 260

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