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Mathematics 8 Online
OpenStudy (anonymous):

how do i determine whether a number is prime or composite?

OpenStudy (saifoo.khan):

factor it

OpenStudy (anonymous):

square root (the number) then test and divide the original number with prime numbers that are less than the square root of the original number.

OpenStudy (anonymous):

Or you can try divisibility rules

OpenStudy (asnaseer):

this might help: http://www.mathsisfun.com/prime-composite-number.html

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