Factor them.
5 x 5 = 25
5 x 7 = 35
Select the common factor.
The GCF is 5.
Find all the factors of each of the numbers. 25 - 1, 5, 25 35- 1, 5, 7, 35 The common factors are 1 and 5. The largest of these (5) is the GCF.
the GCF is 5
The GCF of the 2 numbers is 50.
The GCF is 1.
You need at least two numbers to find a GCF. If that's 3 and 6, the GCF is 3.
Buried relic Regirock - floor 15 Refice - floor 25 Registeel - floor 35
The GCF is: 10
The GCF is: 1
The GCF is 1.
The GCF is 3.
The GCF is 20.
The GCF is 4.