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yes

  1. zero or any positive multiple of 1: 28 is a whole number
  2. a Prime number is a positive integer which has only 1 and the number itself as factors. For example, 2, 3, 5, 7, 11, 13, etc. are all primes. By convention, the number 1 is not prime. (Well some times it is)
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14y ago

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