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Q: What is the greatest common factor of 412 and 640?

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The GCF is 160.

Answer: Infinity or there is none.One common multiple of 16 and 20 is 320. If you double it, which is 640, you have a larger common multiple. If you double it again, which is 1320, you have an even larger common multiple. You can continue doubling it forever, so there is no greatest common multiple, or it can be said to be infinite.The greatest common multiple of any set of numbers is infinite.

640: Prime factorization: (2^7)(5) Every factor: 1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640

640 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 16 factors of 640 are 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640.The prime factors of 640 are 2, 2, 2, 2, 2, 2, 2, and 5.Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The 2 distinct prime factors (listing each prime factor only once) of 640 are 2 and 5.The prime factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 or, in index form (in other words, using exponents), 27 x 5.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.

640

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The greatest common factor of 480 and 640 is 160.

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The GCF is 80.

The GCF is 160.

The GCF is 320.

The GCF is 128.

The GCF is 20.

The greatest common factor (GCF) of 640 and 256 is 128.

I'm not sure what you mean by lowest common factor, typically math teacher will ask for least common multiple or greatest common factor on your homework.While the lowest common factor is 1, 1 is also the greatest common factor. The least common multiple is 640.

64

The GCF is: 4.

1, 2, 4.

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