1,2,4 for the factors of both of them together
1 and 5
The GCF is 4.
There are no factors of 10 between 20 and 100.
The GCF is 4.
The GCF is 20.
factors of 72: 1, 2, 2, 2, 2, 3, 3 factors of 100: 1, 2, 2, 5, 5 So, common factors of the two are 1, 2, 4
82, 85, 86, 87, 91, 93, 94 and 95 all have exactly 4 factors.
Its Ioo
200
49,200
25
5