derek2013 derek2013

26-01-2018
Mathematics

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which of these numbers is a prime 1,11,21,51

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Mistystar4881 Mistystar4881

26-01-2018

11 is a prime number because the only two factors of it are 1 and itself.
Hope this helps!

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26-01-2018

the answer is 11 thats the only one that is prime

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plz mark brainiest plz plz

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