Best Answer

1, 2, 4, 7, 8, 14, 28, 56

1, 3, 9, 27, 81

The GCF is 1.

More answers

27

Prime factorization of:

81 = 3 x 3 x 3 x 3

54 = 3 x 3 x 3.....x 2

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GCF=3 x 3 x 3

GCF = 27

The GCF is 1.

The GCF is 1.

The GCF is 1.

The GCF is 7.

28 and 168 respectively.

GCF(63, 21, 56) = 7.

GCF = 28, LCM = 168.

27 is.

Q: What is the gcf by listing factors of 56 and 81?

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99

The GCF of 81 135 is 27

The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56 The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 81 are: 1, 3, 9, 27, 81

32 and 81 have no common factors aside from 1. Therefore the GCF is just 1.

81, as it is the highest factor of 81 (81 and 1) and is also a factor of 162 (81 and 2)

Related questions

The GCF is 1.The prime factors of 56 are 2,2,2 and 7The prime factors of 81 are 3,3,3 and 3The GCF is 1.

The greatest common factor for 56 and 81 is 1. There are no common factors between 81 and 56 aside from 1. This means that the GCF is 1.

The GCF is 1.

The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, and 56.The prime factors of 56 are: 2 and 7.The factors of 81 are: 1, 3, 9, 27, and 81.The only prime factor of 81 is: 3.

The common factor of 56 and 81 is 1.

99

The GCF of 81 135 is 27

There is no gcf. The factors of 81 are 1, 3, 9, 27, and 81. 3, 9, 27, and 81 do not go into 256 evenly. Therefore, there are no common factors.

Factors of 63: 1, 3, 7, 9, 21 and 63.Factors of 81: 1, 3, 9, 27 and 81.Common factors are 1, 3 and 9.And another method is by finding the GCF of 63 and 81.The factors of GCF are the common factors of 63 and 81.GCF of 63 and 81 is 9. And factors of 9 are 1, 3 and 9.Instead of writing all factors of 63 and 81 it is better to find GCF and then its factors.

The GCF is 1.

The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56 The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 81 are: 1, 3, 9, 27, 81

32 and 81 have no common factors aside from 1. Therefore the GCF is just 1.