Any number that is not zero is referred to as a nonzero number. Positive and negative numbers, fractions, and irrational numbers are all included.
Numbers are classified into several groups based on their characteristics. All positive counting numbers from one to infinity are included in the natural numbers. Whole numbers are the same as natural numbers except that they include zero. All the entire numbers and all the negative counting numbers are integers.
All numbers that can be written as a fraction by putting an integer over a nonzero integer are known as rational numbers. Irrational numbers, such as pi, are non-terminating numbers that cannot be represented as fractions. Finally, all rational and irrational numbers are included in the set of real numbers.