Prime factorisation of 154 = 2 × 7 × 11
Prime Factorisation of 198 = 2 × 3 × 3 × 11
Prime factorisation of 286 = 2 × 11 × 13
To find HCF
Product of common factors of 154, 198 and 286 = 2 × 11 = 22
HCF (154, 198, 286) = 22
To find LCM
Product of common factors of atleast two numbers = 2 × 11 = 22
Product of other factors = 7 × 3 × 3 × 13 = 819
LCM (154, 198, 286) = Product of common factors × Product of other factors = 22 × 819 = 18,018
LCM (154, 198,286) = 18,018
