NUMERAL SYMBOLS

123456789101112131415
Across
  1. 2. – A group of twelve
  2. 4. – A group of twenty
  3. 5. – A number with only two factors, 1 and itself
  4. 9. – The product of all positive integers up to a number
  5. 10. – A single number from 0 to 9
  6. 13. – A number not divisible by 2
  7. 14. – A number divisible by 2
  8. 15. – A number system using only 0 and 1
Down
  1. 1. – A group of 144
  2. 3. – A number system based on 10
  3. 6. – A number that represents part of a whole
  4. 7. – A base-8 number system
  5. 8. – The additive identity
  6. 11. – A whole number, positive or negative
  7. 12. – A numeral system using I, V, X, etc.