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Easy

Question

Find the LCM of 4 5 6 7

  1. 230
  2. 120
  3. 360
  4. 420

The correct answer is: 420


    2          4          5          6          7
    2          2          5          3          7
    3          1          5          3          7
    5          1          5          1          7
    7          1          1          1          7
    1          1          1          1
    LCM of 4,5,6,7 = 2*2*3*5*7 = 420

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