Question

What is common factor for 30 50 100

Answer 1

30=1,3,5,6,10,30
50=1,5,10,25,50
100=1,2,4,5,10,20,25,50,100

Answer 2

I think it is 10 because if you do the factor tree for 30,50 and 100 all of them has 10 in the answers so it is 10