The HCF of two numbers 110 and 1980 is :

140 110 120 180

110

110 = 2 x 5 x 11 1980 = 2 x 2 x 3 x 3 x 5 x 11 So, HCF of two numbers 110 and 1980 is = 2 x 5 x 11 = 110