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What is the LCM of 90 and 100?

The lcm of 90 and 100 is 900.

Steps to find LCM

  1. Find the prime factorization of 90
    90 = 2 × 3 × 3 × 5
  2. Find the prime factorization of 100
    100 = 2 × 2 × 5 × 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 × 3 × 3 × 5 × 5
  4. LCM = 900

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