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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 138 and 345 is 69

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Q: What is the greatest common factor of 138 and 345?
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What is the greatest common factor of 115 230 and 345?

The greatest common factor for {115, 230, 345} is 115. Note that 115 x 2 = 230, and 115 x 3 = 345.


What are the common factors and greatest common factor of 345?

There is neither a greatest common factor nor common factors of a single number, such as 345, 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.


What are the factors and prime factors of 690?

690 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 16 factors of 690 are 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, and 690.The factor pairs of 690 are 1 x 690, 2 x 345, 3 x 230, 5 x 138, 6 x 115, 10 x 69, 15 x 46, and 23 x 30.The proper factors of 690 are 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, and 345 or,if the definition you are using excludes 1, they are 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, and 345.The prime factors of 690 are 2, 3, 5, and 23.The 4 distinct prime factors (listing each prime factor only once) of 690 are 2, 3, 5, and 23.The prime factorization of 690 is 2 x 3 x 5 x 23.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.


What is the fators of 690?

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690.


What is the greatest common factor of 18 45 and 63?

Prime factorization of 18 = 2 x 3 x 3 Prime factorization of 45 = 3 x 3 x 5 Prime factorization of 63 = 3 x 3 x 7 It can be seen that 3 x 3 is the greatest number common in the factorization of 18, 45 and 63. So, GCF is 3 x 3 = 9.