Prime factor each number. Circle the factors that are in all three numbers. Multiply those factors.
27=3x3x3
54=2x3x3
72=2x2x2x3x3
3x3=9 is the GCF
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To find the greatest common factor (GCF) of 27, 54, and 72, we first need to find the prime factorization of each number.
27 = 3 x 3 x 3 54 = 2 x 3 x 3 x 3 72 = 2 x 2 x 2 x 3 x 3
The GCF is the product of the common prime factors raised to the lowest power, which in this case is 3 x 3 = 9. Therefore, the greatest common factor of 27, 54, and 72 is 9.
Since 27 is a factor of 54, and 27 cannot have a larger factor than itself, the greatest common factor of 27 and 54 is 27.
The GCF (Greatest Common Factor) of 54 and 135 is: 27
Since 27 is a factor of 54, it is automatically the GCF of this problem.27. 27*2=54.Since 27 is a factor of 54, it is automatically the GCF of this problem.
The GCF of 27, 36, and 54 is 9.
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