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The greatest common factor of 161 and 105 is the same as the greatest common factor of 105 and 56. I obtained the number 56 by subtracting 161 - 151. Continue like this, until you get one number that is an exact multiple of the other. The next step is, 105 - 56 = 49, so you have to calculate the gcf of 56 and 49.
This method is known as Euclid's Algorithm.
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∙ 13y ago
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∙ 8y ago1 and 7
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What is the greatest common factor of 143 and 161?
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