narfena
narfena narfena
  • 01-06-2017
  • Mathematics
contestada

Are 1,3,7,19,23 prime number

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Diamond02 Diamond02
  • 01-06-2017
All of them are except for number 1
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Fizaa
Fizaa Fizaa
  • 01-06-2017
Every other option is a prime number except for 1, 1 is not a prime number.
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