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One way to approach this is to look at the difference between 99 and 110, which is 11. The greatest common factor of two numbers cannot be larger than the difference between the two numbers and must be a factor of the difference. Since both 99 and 110 are divisible by 11, the greatest common factor is 11.

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โˆ™ 2009-04-26 18:17:17
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Q: What is the greatest common factor of 99 and 110?
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