orin3
orin3 orin3
  • 23-08-2017
  • Mathematics
contestada

Which of the following groups of numbers are all prime numbers? A. 3, 11, 23, 31 B. 2, 3, 5, 9 C. 2, 5, 15, 19 D. 7, 17, 29, 49

Respuesta :

lauren1213 lauren1213
  • 23-08-2017
A because 9 is not prime in answer B, 15 is not prime in answer C, and 49 is not prime in answer D. So the correct answer is A.
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happybunny234
happybunny234 happybunny234
  • 23-08-2017
I think it is A. or D
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