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प्रश्न
Which of the following numbers is co-prime?
216 and 215
उत्तर
Factors of 216 = 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216
Factors of 215 = 1, 5, 43, 215
We know that two numbers whose common factor is only 1 are called co-prime numbers.
The common factor of 15 and 37 is only 1.
Thus, these are co-prime numbers.
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