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The GCF of 255 and 256 is 1.

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14y ago
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11y ago

The GCF of consecutive integers is 1.

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Q: What is the greatest common factor of 255 and 256?
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The greatest common factor of 286 and 251 is 1.


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Greatest common factor of 255 and 256?

Basically factorise 255 and 256 separately. i.e. what prime numbers multiply together to give you 255 first 5 divides in (which is prime) to give you 51 then 51/3 =17 i.e. 5,3,17 = factors of 255 and 2,2,2,2,2,2,2,2 are factors of 256. The answer is 1 because you cant multiply 5,3 and 17 to give you an even number which is all you can get by multiply 2,2,2 etc. Thus ANSWER Is 1


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