Question

Question 1 (j)

Find the HCF of the following numbers:
12, 45, 75

Answer 1

HCF of two or more number is the highest number which divides the given numbers exactly.
Factors of 12 = $2\times 2\times 3$
Factors of 45 = $3\times 3\times 5$
Factors of 75 = $3\times 5\times 5$
HCF of 12, 45, and 75 = $1\times 3=3$