Real Numbers

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Across
  1. 4. a complex number is an element of a number system that extends the real numbers with a specific element denoted i, called the imaginary unit
  2. 6. The number can be expressed in p by q form
  3. 8. Lowest common multiple
  4. 9. The number cannot be expressed in p by q form
Down
  1. 1. when two same numbers are multiplied
  2. 2. A number that is whole and not a fraction
  3. 3. Highest common factor
  4. 5. a quantity that can be expressed as an infinite decimal expansion.
  5. 7. a positive whole number (1, 2, 3, etc.), sometimes with the inclusion of zero.