Question

What is the LCM of 20 , 21 ???​

Answer 1

Answer:

If we have to find the Lcm of 2 numbers which is not divisible by a particular number then we have to multiply the 2 numbers . So your answer will be 20 × 21 = 420

Step-by-step explanation:

Hope it helps . plz make me a brainliest

Answer 2

Answer:

                 Here you go mate.

Step-by-step explanation:

Prime Factorize 20 , 21 :

20 = 2² x 5

21 = 3 x 7

L.C.M = Product of highest powered factors.

L.C.M of 20 , 21 = 2² x 3 x 5 x 7

L.C.M  = 420

                                               Answer : 420

Hope it was helpful.

Please Rate , Thank and Mark my answer as the Brainliest if you think I deserve it.