Question

find the LCM of... a) 63 ,70, 77​

Answer 1

Answer:

By prime factorization :-  

63 = 3 × 21 = 3 × 3 × 7  

70 = 2 × 35 = 2 × 5 × 7  

77 = 7 × 11  

LCM (63, 70, 77) = 3 × 3 × 2 × 5 × 7 × 11 = 6930