Question

Find LCM of each of following
set of number by prime
factorization method
42, 56​

Answer 1

Step-by-step explanation:

Prime factors of 42 are 2, 3, 7. Prime factorization of 42 in exponential form is:

42 = 21 × 31 × 71

Prime Factorization of 56

Prime factors of 56 are 2, 7. Prime factorization of 56 in exponential form is:

56 = 23 × 71

Now multiplying the highest exponent prime factors to calculate the LCM of 42 and 56.

LCM(42,56) = 23 × 31 × 71

LCM(42,56) = 168

Answer 2

Therefore, the LCM of 42 and 56 is 168.

Hope it helps you..!