Question

find lcm and hcf of 196 and 980​

Answer 1

Answer:

Find the prime factorization of 196. 196 = 2 × 2 × 7 × 7.

Find the prime factorization of 980. 980 = 2 × 2 × 5 × 7 × 7.

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM: LCM = 2 × 2 × 5 × 7 × 7.

LCM = 980.