15 is the highest common factor of a pair of numbers. Which of these is also a common factor of this pair of numbers?
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Answer:
The factors of 15 are : 1, 3, 5, 15. 1 and 3 are the only common factors (numbers which are factors of both 12 and 15). Therefore, the highest common factor of 12 and 15 is 3.
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Answer:
2 is the highest common factor of a pair of numbers
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