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Which of the following numbers are co-prime? 81 and 16

Which of the following numbers are co-prime? 
81 and 16

Grade:12

2 Answers

Anand Kumar Pandey
askIITians Faculty 5733 Points
one month ago
Dear Student

Factors of 81 are 1, 3, 9, 27, 81
Factors of 16 are 1, 2, 4, 8, 16
Common factors = 1
Since, their common factor is 1. Hence, the given two numbers are co-prime

​Thanks
Ram Kushwah
108 Points
one month ago
Dear student ,
Please find attached your solution
I have done factorization for your convinience
If two numbers are not having any common factor except 1 
then they are the numbers may be even or odd that does not matter
So 81 and 16 are co-prime
Thanks
 

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