Respuesta :

The GreatestCommonFactor is 20.........
20
5 * 20 = 100
7 * 20 =  140

10
10 * 10 = 100
10 * 14 = 140

5
5 * 20 = 100
5 * 28 = 140

4
4 * 25 = 100
4 * 35 = 140

2
2 * 50 = 100
2 * 70 = 140

1
1 * 100 = 100
1 * 140 = 140