Answers by visitors named: Abdeta

First 1400=2^3*5^2*7 40=2^3*5 Then we take non common one and common with the biggest power x=2^3*5^2*7 can be one answer but the question says an odd number the other possible outcome would be x=5^2*7=175,this is because 2^3 had chance to be in x and also not to be in x.