Question

EXERCISE 3.6
1. Find the HCF of the following numbers:
(b) 30, 42
(a) 18,48​

Answer 1

Answer:

HCF means Highest Common Factors.

(b)So, Here factors of 30 are 1, 2, 3, 5, 6, 10, 15.

Factors of 42 are 1, 2, 3, 6, 7, 14, 21.

We found the factors and prime factorization of 30 and 42. The biggest common factor number is the HCF number.

So the greatest common factor 30 and 42 is 6.

(a) Factors of 18 are1, 2, 3, 6, 9

Factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24

We found the factors and prime factorization of 18 and 48. The biggest common factor number is the HCF number.

So the greatest common factor 18 and 48 is 6.

Thank You