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6 January, 23:56

Explain why the greatest common factor of two numbers is sometimes 1.

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  1. 7 January, 00:16
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    Because one of the numbers can be prime numbers, for example the greatest common factor of 12 and 13 it's 1 because 13 it's a prime number or because they don't have common prime factors. Prime numbers are the numbers who can be divided just by 1 and themselves.
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