Question

By prime factorisation method , the LCM and HCF of 48 72 and 90

Answer 1

Answer:

Solution:

Prime Factors of 48,72,90 are

48 = 2, 2, 2, 2, 3

72 = 2, 2, 2, 3, 3

90 = 2, 3, 3, 5

So Common Factors are 2 and 3.

The HCF is 2 x 3 = 6

Answer 2

Answer:

hope this helps you

Step-by-step explanation:

Solution:

The prime factors of 48,72,90 are

48=2x2x2x2x3

72=2x2x2x3x3

90=2x3x3x5

•

• • the common factor is 2 and 3

HCF=2x3=6