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प्रश्न
Which of the following numbers is co-prime?
81 and 16
उत्तर
Factors of 81 = 1, 3, 9, 27, 81
Factors of 16 = 1, 2, 4, 8, 16
We know that two numbers whose common factor is only 1 are called co-prime numbers.
The common factor of 81 and 16 is only 1.
Thus, these are co-prime numbers.
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