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OpenStudy (anonymous):
Which of the following is true? 7 is a composite number because one and seven are its only factors. 9 is a prime number because it is divisible by 3. thirteen is a composite number because it is divisible by one and itself. twenty-three is a prime number because it is only divisible by one and itself.
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OpenStudy (raden):
the last one is correct
OpenStudy (anonymous):
explain
OpenStudy (raden):
already explained in sentence :v
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