This answer will be 2 because can go into 4 and 2 can go into 10 how many times 5 cause 5 times 2 equals and 2 times 2 equal and they both have an 2 in that number so two(2) will be your answer.
The GCF is 2.
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The factors of 12 are:1, 2, 3, 4, 6, 12The factors of 20 are:1, 2, 4, 5, 10, 20The common factors are:1, 2, 4The Greatest Common Factor:GCF = 4
common factors are 1, 2 and 4. 4 is the greatest common factor
Factors of 30 are: 1, 2, 3, 5, 6, 10, 15, and 30. Factors of 40 are: 1, 2, 4, 5, 8, 10, 20, and 40. Find the greatest factor they both have in common. That is the greatest common factor.
4
The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The greatest factor they all have in common is 2.