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Subjects>Math>Basic Math

What is the gratest common factor of 7 15 21?

Updated: 4/28/2022

Wiki User

∙ 7y ago

Best Answer

The GCF is 1.

Wiki User

∙ 7y ago

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What is the greatest common factor of 6 15 21?

The GCF is 3.

What is the greatest common factor of 15 21 and 27?

Answer: 3Definition: 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 15 are 1, 3, 5, and 15.The factors of 21 are 1, 3, 7, and 21.The factors of 27 are 1, 3, 9, and 27.The common factors are 1 and 3. Therefore, the greatest common factor is 3.

What is the greatest common factor of 16 and 21?

The greatest factor of 21 and 16 is 21, which is a factor of 21 but not of 16.

What is the greatest common factor of 6 15 and 21?

The greatest common factor of 6, 15 and 21 is 3. The prime factorization of 6 is 2*3 The prime factorization of 15 is 3*5 The prime factorization of 21 is 3*7 The GCF is then 3, as it is the only common factor.

What are the common factors and greatest common factor of 21 and 42?

The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.

Related questions

What is the gratest common factor of 21 147?

21

What is th gratest common factor of 42 and 105?

42 prime factors -----> 2,3,7 105 prime factors -----> 3,5,7 There is 3 and 7 in common : There fore 3*7 = 21; 21 is the greatest common factor.

What is the greatest common factor of 15 21 and 28?

The Greatest Common Factor of 15, 21, 28: 1

What is the common factor of 21 and 15?

1 and 3

What is the greatest common factor of 71 and 15 and 21?

It is: 1

What is the greatest common factor 7 15 21?

1

What is the greastest common factor of 15 and 21?

The GCF is 3.

What are the common factors of 15 and 21?

The factors of 15 are 3 and 5. The factors of 21 are 3 and 7. So the common factor is 3.

What is the least common factor of 6 15 and 21?

The least common factor of any set of numbers is 1.

What is the greatest common factor of 15 21 and 39?

The GCF is 3.

What is the greatest common factor of 15 21 and 30?

The GCF is 3.

What is the greatest common factors of 15 and 21?

The greatest common factor of 15 and 21 is 3The factors of 15 are: 1, 3, 5, 15The factors of 21 are: 1, 3, 7, 21The common factors are: 1, 3The Greatest Common Factor (GCF) is: 3

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