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Subjects>Math>Basic Math

What is the greatest common factor of 21 and 51?

Updated: 4/28/2022

Wiki User

∙ 7y ago

Best Answer

The GCF of 21 and 51 is 3. Both these numbers have only one prime factorization.

21=3*7

51=3*17

So the greatest common divisor is 3.

Wiki User

∙ 7y ago

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Wiki User

∙ 13y ago

GCF of 21 and 51 is 3.

This answer is:

Wiki User

∙ 7y ago

GCF(51, 21) = 3.

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What is the greatest common factor of 51?

There is not a greatest common factor of 51 because there cannot be a greatest common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common.The factors of 51 are 1, 3, 17, and 51.Examples:The greatest common factor of 34 and 51 is 17.The greatest common factor of 51 and 90 is 3.The greatest common factor of 5 and 51 is 1.You need at least two numbers to find a GCF.

What is the greatest common factor of 39 48 and 51?

The Greatest Common Factor of 39, 48, 51: 3

Greatest common factor of 51 and 21?

GCF of 21 and 51 is 3.21=3*751=3*17

What is the greatest common factor of 34 and 51?

Greatest common factor of 51 and 34 is 17.

What is a greatest common factor of 17 and 51?

17 is the greatest common factor - it goes into 17 once, and 51 three times.

Related questions

What is the greatest common factor shared by 51 and 21?

What is the greatest common factor shared by 51 and 21?

What is the greatest common factor of 21 and 651?

The factors of the two numbers are :- 51 : 1, 3, 17 and 51 21 : 1, 3, 7 and 21. Ignoring the trivial factor of 1, the only common factor and therefore the greatest common factor is 3.

What is the greatest common factor of 21 27 and 51?

3 is the greatest common factor of 21, 27, and 51The GCF is 3.

What is the Greatest Common Factor of 51 21?

The GCF is 3.

The greatest common factor of 51 and 34?

The Greatest Common Factor of 51 and 34 is 17.

What is the greatest common factor of 62 and 51?

The greatest common factor of 62 and 51 is 1.

What is the greatest common factor of 51 and 35?

The greatest common factor of 51 , 35 = 1

What are the greatest common factors of 102 and 51?

The greatest common factor is 51

What is the greatest common factor of 51?

There is not a greatest common factor of 51 because there cannot be a greatest common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common.The factors of 51 are 1, 3, 17, and 51.Examples:The greatest common factor of 34 and 51 is 17.The greatest common factor of 51 and 90 is 3.The greatest common factor of 5 and 51 is 1.You need at least two numbers to find a GCF.

What is the greatest common factor of 39 48 and 51?

The Greatest Common Factor of 39, 48, 51: 3

What is the greatest common factor of 51 and 125?

Greatest common factor of 51 and 125 is 1.

What is the greatest common factor of 51and 21?

Factors of 51: 1, 3, 17, 51Factors of 21: 1, 3, 7, 21GCF (51, 21) = 3

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