Find the HCF of the two numbers 132 and 165.
33
Prime factorisation of 132 = 2 x 2 x 3 x 11
Prime factorisation of 165 = 3 x 5 x 11
The largest or greatest factor common of two or more numbers is termed as HCF of given numbers.
∴ HCF of 132 and 165 = 11 x 3 = 33