14=2 20=2 25=5
7=7 10=2 5=5
1=1 5=5 1=1
so the one for 14 1=1 so the answer for 25
would be 2*7 so the answer for 20 would be 5*5
would be 2*2*5 or 4*5
the reason that i did not put the one into the math problems is because anything times one is its self so i hope that this helps