Question

3. Find the HCF of the following numbers. (a) 30 and 5
0 (b) 9 and 24​

Answer 1

HCF- Highest Common Factor

HCF is found by finding all common factors of two numbers and selecting the largest one.

(a) Factors of 30 are:

2*3*5

Factors of 50 are:

2*5*5

Therefore, common factors = 2*5 = 10

(b) Factors of 9 are:

3*3

Factors of 24 are:

2*2*2*3

Therefore, common factors =3