Study guides

Q: What is the greatest common factor of 21 and 28 and 56?

Write your answer...

Submit

Related questions

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

The Greatest Common Factor (GCF) is: 7

7

7

GCF (28, 14, 21) = 7

7

7

7

The GCF is 7.

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 21, 28, and 56 is 7

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 21, 28, and 35 is 7

The GCF is 7.

The GCF is 7.

The GCF is 7.

The GCF is 1.

The GCF is 7.

If you mean 21 and 28 then it is 7

The GCF is 7.

The GCF is 7.

14 and 21, and 21 and 28 are the number pairs between 15 and 30 that have 7 as their greatest common factor.

The Greatest Common Factor (GCF) is: 28

The GCF is 7.

The GCF (Greatest Common Factor) of 28 and 140 is: 2828.

The GCF of 21 and 28 is 7.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 21 are 1, 3, 7, and 21.The factors of 28 are 1, 2, 4, 7, 14, and 28.The common factors are 1 and 7. Therefore, the greatest common factor is 7.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 21 are 3 and 7.The prime factors of 28 are 2, 2, and 7.The prime factors in common are a single 7, so the greatest common factor is 7.77There is neither a greatest common factor nor common factors of a single number, such as 2821, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor.

The greatest common factor of 14, 28, and 70 is 14.