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What is the LCM of 4 and 1?

The lcm of 4 and 1 is 4.

Steps to find LCM

  1. Find the prime factorization of 4
    4 = 2 × 2
  2. Find the prime factorization of 1
    1 = 1
  3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

    LCM = 2 × 2
  4. LCM = 4

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