Question

find LCM and HCF of 20 and 48 by prime factorization method ​

Answer 1

Step-by-step explanation:

The lcm of 20 and 48 is 240.

Steps to find LCM

Find the prime factorization of 20

20 = 2 × 2 × 5

Find the prime factorization of 48

48 = 2 × 2 × 2 × 2 × 3

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 2 × 2 × 2 × 3 × 5

LCM = 240