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What is the LCM of 2401 and 1890?

The LCM of 2401 and 1890 is 648270.

Steps to find LCM

  1. Find the prime factorization of 2401
    2401 = 7 × 7 × 7 × 7
  2. Find the prime factorization of 1890
    1890 = 2 × 3 × 3 × 3 × 5 × 7
  3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

    LCM = 2 × 3 × 3 × 3 × 5 × 7 × 7 × 7 × 7
  4. LCM = 648270

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