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What is the greater common factor of the number 21 and 54?

Updated: 8/19/2019

Wiki User

∙ 12y ago

Best Answer

The GCF is 3.

Wiki User

∙ 12y ago

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Related questions

The greater common factor of 18 21?

The greatest common factor of 18 and 21 is 3.

What is the greater common factor of 42and 63?

The GCF is 3.

Why is 21 the greatest common factor in 21 and 63?

Because 21 is a factor of 63. 21 is the greatest factor of 21. A larger number doesn't exist.

What is greater common factor of 21?

You need at least two numbers to find a GCF.

What is the common factor for 21?

There cannot be a common factor of just one number. To be common there need to be at least two numbers.

What number is the greatest common factor of 21 and 48?

It is: 3

What is the greatest common factor for 63 42 and 21?

The Greats Common Factor (GCF) is 21 63: 1,3,7,9,21,63 42: 1,2,3,67,14,21,42 21: 1,3,7,21 They all number 21 listed in there the Factors

Which number goes into 21 and 18?

The highest common factor of 21 and 18 is 3

What number goes into 11 and 21?

1 is the only common factor of 11 and 21.

What are the greatest common factor of 21 and 19?

If 1 is considered a factor, the only common factor of 21 & 19 is 1, because 19 is a prime number. I'm not sure whether 1 is considered a factor since it does not reduce the original number and it's not a prime number.

What are the common and greatest common of 21?

There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.

What is the greatest common factor of 17 and 21?

The GCF of 17 and 21 is 1Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 17 are 1 and 17.The factors of 21 are 1, 3, 7, and 21.The only common factor is 1. Therefore, the greatest common factor is 1, which means the numbers are relatively prime.1 because 17 is a prime number

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