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What is the LCM of 210 and 343?

The lcm of 210 and 343 is 10290.

Steps to find LCM

  1. Find the prime factorization of 210
    210 = 2 × 3 × 5 × 7
  2. Find the prime factorization of 343
    343 = 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 × 3 × 5 × 7 × 7 × 7
  4. LCM = 10290

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