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The greatest common factor (GCF) of two (or more) numbers is the greatest factor that divides two numbers. To find the GCF you must work out and list the prime factors of each of the numbers. You will see that the numbers have prime factors in common. Multiply those factors the numbers have in common together and this gives you the GCF for the numbers.

eg Number A = 18, Prime factors = 2*3*3

Number B = 24, Prime factors = 2*2*2*3

The Prime factors that A and B have in common are 2 and 3

Multiply them together = 6

6= the GCF of 18 and 24

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7y ago
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12y ago

That's called the greatest common factor, or GCF.

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8y ago

That's the greatest common factor, or GCF.

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7y ago

That's the greatest common factor, or GCF.

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9y ago

That is called the "greatest common factor" or the "greatest common divisor".

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7y ago

It is their greatest common factor.

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Brandon Davis

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3y ago

ion know

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Q: What is the largest factor that two numbers share is called?
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What is the largest shared factor of two numbers called?

That's the greatest common factor, or GCF.


What is a factor that two or more numbers share called?

That's the greatest common factor, or GCF.


What is the greatest common factor of 34?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What does it mean to share a common factor?

A common factor of several numbers is a number that can divide evenly into each one of them. '10' is a common factor of 20 and 30. '5' is a common factor of 10 and 15. '3' is a common factor of 6, 9, and 12. '2' is a common factor of all even numbers. '1' is a common factor of all whole numbers.


What is the greatest of the common factors of 2 or more numbers?

Every natural number has factors. A factor is any number that will evenly (or wholly) divide the first number leaving no "remainder". So 5 is a factor of 10, because 10 divided by 5 is exactly 2 with nothing left over. A "common factor" is any factor that two or more numbers share in common. So 8 and 12 have a common factor of 4, that is, they both have 4 as a factor. The numbers, 24, 18, 15, and 21 possess a common factor of 3. The "greatest common factor" is the largest such factor that two numbers share in common. For example: given the two numbers 12 and 6, which have common factors of 1, 2, 3, 4 and 6, the greatest (or 'highest') common factor is 6. NOTE: A single number in itself cannot have a "common" factor, even though, as stated, it has factors of itself. The term "common" means that more than one number must be involved so that a comparison of factors can be made between the numbers to see what factor is common to all/both.

Related questions

What is the largest shared factor of two numbers called?

That's the greatest common factor, or GCF.


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There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What is the greatest common factor of 270?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


Greatest common factor of 42?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


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There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


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There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What is greatest common factor of 39?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What are the greatest common factors of nine?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What are the greatest common factors for 36?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What is the largest factor that 2 or more numbers share?

That's known as the greatest common factor, or GCF.


What are the common factors and greatest common factor of 125?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What greatest common factors go into 32?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.