numeral symbols

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123456789101112131415
Across
  1. 2. – The number 6, the first perfect number.
  2. 6. – The widely used numeral system (0-9).
  3. 7. – The number 4, the first composite number.
  4. 9. – The number 10, the base of the decimal system.
  5. 11. – The number 9, the square of 3.
  6. 13. – The number 2, the first even number.
  7. 15. – The number 7, often considered lucky.
Down
  1. 1. – Numbers indicating position (1st, 2nd, etc.).
  2. 3. – Numbers representing quantity (1, 2, 3, etc.).
  3. 4. – The number 5, a prime number.
  4. 5. – A numeral system using I, V, X, etc.
  5. 8. – The number 0, representing nothing.
  6. 10. – The number 8, a power of 2 (2³)
  7. 12. – The number 3, a prime number.
  8. 14. – The number 1, the first natural number.