How do you get the greatest common factor of 105/20?

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gr5achgirlGalle5 gr5achgirlGalle5

03-11-2016
Mathematics

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How do you get the greatest common factor of 105/20?

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galaxynuggetztm galaxynuggetztm · Answer 1 · 2016-11-03T21:14:11+01:00

galaxynuggetztm galaxynuggetztm

03-11-2016

Find the prime factor of 105
105 = 3 × 5 × 7

Then Find the prime factor of 20 20 = 2 × 2 × 5

And last Multiply all the common factors obtained in steps i) and ii) above to find the gcf:
GCF = 5

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