The LCM of the three numbers 16, 28 and 42 is:

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RRB ALP CBT I 14 Aug 2018 Shift 1 Official Paper
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  1. 2
  2. 168
  3. 252
  4. 336

Answer (Detailed Solution Below)

Option 4 : 336
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Detailed Solution

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Given:

The numbers are 16, 28 and 42

Calculation:

LCM of 16, 28 and 42

Factorize all three numbers we get

16 = 2 × 2 × 2 × 2

28 = 2 × 2 × 7

42 = 2 × 3 × 7

LCM = 2 × 2 × 2 × 2 × 3 × 7

LCM = 336

∴ The LCM is 336.

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