Answer :
1. You choose 2 or more numbers (lets say 8 and 42)
2. You find ALL of the factors of the two numbers(8:1,2,4,8; 42: 1, 2, 3, 6, 7, 14, 21, 42)
3. You find equivalent, or the same factors of both numbers (8,12:1, 2)
4. The you se the last number on the common factors. he last number (which is 2) is the GCF
Hope this helps
2. You find ALL of the factors of the two numbers(8:1,2,4,8; 42: 1, 2, 3, 6, 7, 14, 21, 42)
3. You find equivalent, or the same factors of both numbers (8,12:1, 2)
4. The you se the last number on the common factors. he last number (which is 2) is the GCF
Hope this helps