Natural numbers

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123456789101112
Across
  1. 2. the number which has exactly two divisors
  2. 4. the composite number which can be factored as 2x7
  3. 5. the only even prime number
  4. 7. a prime numer does not have any .....other than one and itself
  5. 9. two prime numbers are always ...... prime
  6. 11. except for ..... and one, a natural number is either prime number or a composite number
Down
  1. 1. six is the smallest .......number
  2. 3. every ....... number can be written as the product of two or more primes
  3. 6. the natural number which is not multiple of two
  4. 8. two positive numbers are said to be relatively prime if they have no common ...... other than one
  5. 10. when we multiply odd and even numer the result is always:...
  6. 12. the natural number which is neither prime nor composite