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How to get the greatest common of 45 and 81

User SandyJoshi
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2 Answers

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You should draw a factor tree. It will help you a lot .
User Amba
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find the factors and get the ones common to both of them

45=3 times 3 times 5
81=3 times 3 times 3 times 3
so the factors common to both are 3 times 3 which is 9




User Manuel Munoz
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