Positive Number

Positive Number

Real number that is greater than or equal to zero.

The only number that is both positive and negative is the number 0.
In general, the sign of a positive integer is implied and we do not write it.
The opposite of a positive number is a negative number with the same absolute value and vice versa.

  • The opposite of –5 is 5.
  • The opposite of 7 is –7.


The numbers 5, 7, \(\frac{1}{2}\), \(\sqrt{6}\), 2.8 and 13π are positive numbers.

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