Natural Numbers

The whole of the natural numbers is formed by:

N = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,...}

Natural numbers count the elements of a whole, cardinal number, or express the order which occupies an element in a whole, ordinal number.

The natural numbers are ordered, which allows us to compare two natural numbers:

5 > 3;    5 is greater than 3.

3 < 5;    3 is less than 5.

The natural numbers are unlimited, if 1 is added to a natural number, another natural number is obtained.

Representation of the Natural Numbers

The natural numbers can be represented in a straight line ordered from minor to major.

On a straight line, draw one point and mark it with the number zero. To the right of the zero, and with the same separations, place in ascending order the following natural numbers: 1, 2, 3...