The LCM of 42, 36, 312 and 126 is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 6552 .
Prime factorization,
42 = 2 × 3 × 7
36 = 22 × 32
312 = 23 × 3 × 13
126 = 2 × 32 × 7
LCM = 23 × 32 × 7 × 13
= 8 × 9 × 7 × 13
= 6552