Question

what will be the LCM of 12, 15 and 21

Answer 1

Answer:

420 is lcm of these numbers12, 15 and 21!!!!!

Answer 2

Answer:

LCM of 12, 15 and 21 is 420.

Factorize of the above numbers :

Factorize of the above numbers :    12 = 2×2 ×3 

3     15 = 3 ×5 

5     21 = 3 ×7 

LCM = 22 × 3 × 5 ×7=420

HOPE IT HELPS