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The number 9 is a natural number that follows 8 and precedes 10. It is an integer and is classified as an odd number. In mathematics, 9 is significant in various ways: 1. **Mathematics**: - It is the square of 3 (3 x 3 = 9). - It is also the highest single-digit number in the decimal system.

Ancestors (6)

  1. Integers
  2. Numbers
  3. Arithmetic
  4. Fields of mathematics
  5. Mathematics
  6. Home

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