Q: What is the highest common factor of 63 and 81?

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Nine 7x9=63 so 63/9=7 9x9=81 s0 81/9=9

the number 9

To simplify the fraction 81/63, you need to find the greatest common factor (GCF) of both numbers, which is 9. Divide both the numerator and denominator by 9 to get the simplified fraction. Therefore, 81/63 simplifies to 9/7.

The gcf of 37 and 81 is 1 (their only common factor)

9

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The highest common factor of 81 and 63 is 9

Use the following factor trees to determine the answer355, 7and637, 97, 3, 37 is the common factor of 35 and 63

Nine is the highest common factor of 81 and 9

The highest common factor of 81 and 27 is 27

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 greatest common factor of 81 and 135 is 27.

The GCF is 9.

The GCF is 9.

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 18, 45, 63, and 81 is 9

The GCF is 9.

9

The GCF is 9.