Number (Natural Numbers) (Whole Numbers) Integers Rational Numbers Irrational Numbers
Real Numbers
Natural Numbers: These are the counting numbers that start from 1 and continue infinitely. They do not include zero or negative numbers.
Whole Numbers: These include zero and all the natural numbers. They do not include negative numbers or fractions.
Integers: These include zero, all the natural numbers, and their negative counterparts. They do not include fractions or decimals.
Rational Numbers: These are numbers that can be written as a fraction of two integers. This includes integers, fractions, and terminating or repeating decimals.
Irrational Numbers: These are numbers that cannot be expressed as a fraction of two integers. They include non-repeating decimals such as pi or the square root of 2.
Real Numbers: This is the set of all rational and irrational numbers. It includes all possible numbers on the number line.