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All numbers have a common factor of 1. Sometimes that's the only common factor.

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It happens because one is the only factor the two numbers have in common.

Q: Why is the greatest common factor of two numbers sometimes 1?

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The greatest common factor of the numbers 323 and 391 is 17.

The greatest common factor of the numbers 16 and 56 is 8.

The greatest common factor of two or more prime numbers is 1.

The greatest common factor of the numbers 284 and 864 is 4.

is known as the greatest common factor, or GCF.

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Sometimes two numbers have no other factors in common.

The greatest factor that two or more numbers have in common is known as the greatest common factor, or GCF.

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.

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.

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.

No. The Greatest Common Factor (GCF) is the greatest factor that is in common with the numbers you are given.

Answer: None, it is impossible. No single number has a greatest common factor. A "common factor" is a factor that two or more numbers have in common. The "greatest common factor" is the largest factor that two or more numbers have in common.