There is no fractional or decimal part. And no negatives.
Example: 5, 49 and 980 are all whole numbers.
Whole Numbers, but without the zero. Because you can't "count" zero.
Example: 1, 2, 3, 4, 5, (and so on).
is a real number that cannot be written as a simple fraction.Irrational means not Rational
Example:22/7, square root of 2,square root of 3, square root of 1
Integers are like whole numbers, but they also include negative numbers ... but still no fractions allowed!
the numbers that can be written in decimal notation, including those that require an infinite decimal expansion. The set of real numbers includes all integers, positive and negative; all fractions; and the irrational numbers, those whose decimal expansions never repeat.
Examples:3.9, -34,7/3, 34, 234/98,.98323, 1/2,2, 4,