There are many different types of numbers in math.
Natural Number: A natural number is a counting number ie: 1,2,3,4,5
Whole Number: A whole number are positive whole numbers including 0 ie: 0,1,2,3,4,5
Integers: Integers are the set of whole numbers, and negative counting numbers ie: -4,-3,-2,-1,0,1,2,3,4
Rational Numbers: A rational number is any number that can be written as a fraction or decimal ie: 8.95, 3/5, 6^3, 0.45 repeating