4 x 25 = 100!
Also there is 1 x 100 = 100!
100*40
-4 and -25
80+20 (and) 80*20(* means times)
60
100*2=200
100*40
-4 and -25
There are no two prime numbers in which a product of 100 is possible.
125
5,5, and 4
80+20 (and) 80*20(* means times)
60
88
100*2=200
129
There are infinitely many such pairs. Some examples: 1*140 100*1.4 sqrt(2)*70sqrt(2)
x^2+25x-100 is not factorable because there are not numbers that when multiplied equal -100 and when added equal 25.