what is a natural number

8 hours ago 5
Nature

A natural number is a positive whole number used for counting and ordering. Typically, natural numbers start from 1 and go upwards:
1, 2, 3, 4, 5, and so on.

Key points about natural numbers:

  • They do not include zero (in some definitions, zero is included, but traditionally natural numbers start at 1).
  • They do not include fractions, decimals, or negative numbers.
  • They are used for counting objects (like 3 apples) or ordering (like 1st, 2nd, 3rd).

Examples:

  • 7 is a natural number.
  • 0 is sometimes included but often considered a whole number instead.
  • -3 or 2.5 are not natural numbers.

If you'd like, I can explain more about how natural numbers relate to other types of numbers!