Question

Find H.C.F and L.C.M of numbers 12,15 and 21 by using prime factorization.​

Answer 1

Step-by-step explanation:

12,15,21 2

6 ,15,21 2

3 ,15,21 3

1 ,5, 7 5

1 ,1 ,7 7

1,1,1

2×2×3×5×7=420