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it is 7

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Q: What is the highest common factor of 28 and 21?
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What is the highest common factor of 28 14 and 21?

The GCF is 7.


What is the highest common factor of 28 and 7791?

The highest common factor is 7.


What is the HCM of 21 and 28?

The common multiples of 21 and 28 are 84, 168, 252, 336, ... and so on, never ending; so there is no real Highest Common Multiple.Do you mean:Highest Common Factor - the highest number which divides both 21 and 28 which is 7; orLowest Common Multiple - the lowest number which is a multiple of both 21 and 28 which is 84.


What is the highest common factor of 28 84 91?

The highest common factor of the numbers 28, 84 and 91 is 7.


What is the highest common factor of 28 and 35 and 70?

The highest common factor (HCF) is 7.


What is the highest common factor of 48 and 28?

The highest common factor is 4.


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

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


What you the greatest common factor of 28 and 32?

4 is the highest common factor of 28 and 32


What is the highest common factor of 28 and 56?

The GCF is 28.


What is the highest common factor of 196 and 700?

The Greatest Common Factor (GCF) is: 28


What is the highest common factor of 504 and 700?

To find the highest common factor (HCF) of 504 and 700, we first need to factorize both numbers. The prime factors of 504 are 2^3 x 3^2 x 7, and the prime factors of 700 are 2^2 x 5^2 x 7. To find the HCF, we take the common prime factors with the lowest exponent, which are 2^2 x 7 = 28. Therefore, the highest common factor of 504 and 700 is 28.


What is the lowest common factor of 28 and 32?

1 and the highest common factor is 4