The common factors are 1 and 3.
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Factors of 18 are 1, 18, 2, 9, 3, 6. Factors of 72 are 1, 72, 2, 36, 3, 24, 4, 18, 6, 12, 8, 9. So, Common Factors of both are: 1, 2, 3, 6, and 18. 18 is the GCF.
Factors of 9 : 1 3 9 Factors of 36: 1 2 3 4 6 9 12 18 36 1, 3, and 9 are common factors of 9 and 36, and the GCF is 9.
The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72The common factors are: 1, 2, 3, 6, 9, 18The Greatest Common Factor (GCF) is: 18
The answer is 18. The factors of 12 are 1,2,3,4,6 and 12. The factors of 18 1, 2, 3, 6, 9, and 18. The first 3 multiples of 12 are 12, 24, 36... and the first 3 multiples of 18 are 18, 36, 54....
The GCF of 12 and 18 is 6.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 12 are 1, 2, 3, 4, 6, and 12.The factors of 18 are 1, 2, 3, 6, 9, and 18.The common factors are 1, 2, 3, and 6.Therefore, the greatest common factor is 6.The Greatest Common Factor (GCF) is: 6The GCF is 6.