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Question
Which of the following pairs of numbers are co-primes?
(5) 207, 702
(5) 207, 702
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Solution
The divisors of 207 are 1, 3, 9, 23, 69 and 207.
The divisors of 702 are 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351 and 702.
Because the numbers have more than one common divisor, they are not co-prime.
The divisors of 702 are 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351 and 702.
Because the numbers have more than one common divisor, they are not co-prime.
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