zoeypoko101
zoeypoko101 zoeypoko101
  • 30-11-2016
  • Mathematics
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Which of these numbers is prime? large 11, 15, 21, 27, 56

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BobR9
BobR9 BobR9
  • 30-11-2016
11 is the only prime number. It's only multiples are 1 and itself
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ducks62889 ducks62889
  • 30-11-2016
11 because only 1 times 11 = 11 and it has no other factors 
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