Question

Find the smallest number of 4 digits exactly divisible by 12 15 20 and 35

Answer 1

Answer

LCM of 12 -- 2*2*3

Lcm of 15 -- 3*5

LCM of 30 -- 2*2*5

LCM of 35 -- 5*7

Smallest power is 2*3*5*7= 210

Ans is 210

Answer 2

Lcm of 12 ,15 ,20 and 35 is 210 so 210*5 =1050 is the ans