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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.

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Q: What one number has the greatest common factor of 871?

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871 and 1742 is one possibility.

871 and any multiple of 871

There is neither a greatest common factor nor common factors of a single number, such as 871, 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.

Both numbers are not even. If they were, the GCF would be 1742 (871*2) i think it is 5 of the two rear numbers factor

871 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 4 factors of 871 are 1, 13, 67, and 871.The factor pairs of 871 are 1 x 871 and 13 x 67.The proper factors of 871 are 1, 13, and 67 or,if the definition you are using excludes 1, they are 13 and 67.The prime factors of 871 are 13 and 67.The 2 distinct prime factors (listing each prime factor only once) of 871 are 13 and 67.The prime factorization of 871 is 13 x 67.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.

Related questions

871 and 1742 have a GCF of 871.

871 and 1742 is one possibility.

871 and 871. If they need to be different, 871 and 1742.

871 and 871. If they need to be different, 871 and 1742.

871 and any multiple of 871

871 and 1742 is one possibility.

871 and 871. If they have to be different, 871 and 1742

There is neither a greatest common factor nor common factors of a single number, such as 871, 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.

You need to compare at least two numbers to find a GCF.

Both numbers are not even. If they were, the GCF would be 1742 (871*2) i think it is 5 of the two rear numbers factor

I've seen variations of this question that say that the GCF of two numbers is 871. Choose 871 and any multiple of 871 or any two multiples of 871 that differ by 871.

1742 and 2613

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