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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

3 Answers

Harshit Singh
askIITians Faculty 5965 Points
9 months 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
110 Points
9 months 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
 
Shraddha Singh
273 Points
6 months ago
Dear Student,
 
Factors of 81 = 1×3×3×3×3
Factors of 16 = 1×2×2×2×2
Common factors = 1
 
Since the common factor is 1, the given two numbers are co prime.
 
Hope it helps!
Thank you

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