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Mathematics 14 Online
OpenStudy (anonymous):

Which pair of numbers is relatively prime? A. 10 and 21 B. 12 and 54 C. 15 and 27 D. 21 and 39

OpenStudy (amistre64):

to be relatively prime is to have no factors in common. one chk is to factor both numbers into their prime factors and see if they have anything in common

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