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Q: What is the greatest common factor of 442 and 663?

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The GCF of 78 and 663 is: 39

51

The common factors of 442 and 663 are: 1, 13, 17, and 2211, 13, 17, 221

Factors for 442: 1, 2, 13, 17, 26, 34, 221, 442 Factors for 663: 1, 3, 13, 17, 39, 51, 221, 663 Common Factors: 1, 13, 17, 221

221, 442, 663

The first step in finding the greatest common factor is to break the numbers down into their prime factors: 663=3x13x17 1547=7x13x17 The next step is to identify any common factors. In this case, the common prime factors are 13 and 17. To find the greatest common factor we multiply these together: 13x17=221 So 221 is the GCF of 663 and 1547.

51.

221, 442, 663, 884 and so on.

663 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 8 factors of 663 are 1, 3, 13, 17, 39, 51, 221, and 663.The factor pairs of 663 are 1 x 663, 3 x 221, 13 x 51, and 17 x 39.The proper factors of 663 are 1, 3, 13, 17, 39, 51, and 221 or,if the definition you are using excludes 1, they are 3, 13, 17, 39, 51, and 221.The prime factors of 663 are 3, 13, and 17.The 3 distinct prime factors (listing each prime factor only once) of 663 are 3, 13, and 17.The prime factorization of 663 is 3 x 13 x 17.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.

221, 442, 663, 884, 1105.

They are 221, 442, 663, 884, and 1105.

You need at least two numbers to find a GCF. If that's 145 and 663, the GCF is 1. If that's 14, 56 and 63, the GCF is 7.

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