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OpenStudy (anonymous):
Which number is prime? A. 53 B. 63 C. 57 D. 51
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OpenStudy (anonymous):
@mathstudent55
OpenStudy (dan815):
the number whose factors are 1 and itself
OpenStudy (dan815):
lets pick a number like 63... does 2 go into 63?? no! does 3 go into 63?? YES 3*21=63, so 63 is not a prime number, since a number other than 1 and 63 go into it
OpenStudy (dan815):
you try... pick another number u are given now
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