Question

find thelcm s hcfof 15 s 20 bythe prime factorization method

Answer 1

Prime Factorisation method,

5 | 15,20

1 | 3,4

Further,there is no common factor for 3 and 4(except 1, BTW),

So LCM of 15 and 20 is,

5 × 3 × 4 = 60

-WonderGirl