Counting numbers > 0: 1,2,3,4,5,... Since 15 is positive It is one of the counting numbers 15 is a natural number

Whole Number Test

Whole Numbers are positive numbers They include 0 They have no decimal or fractional parts Since 15 is an integer ≥ 0 15 is a whole number

Integer Test

Integers have no fractions or decimals ...,-5,-4,-3,-2,-1,0,1,2,3,4,5,... 15 is an integer

Rational Number Test

Check for integer or decimal Rationals = a/b where a and b are integers and b ≠ 0. 15 is an integer or decimal 15 is a rational

Irrational Number Test

Is not a ratio between two integers Is not an imaginary number.

Imaginary Number Test

Test for square root of a negative 15 is not the square root of a negative It is not imaginary Since 15 is a rational number 15 is not an irrational number

How does the Rational,Irrational,Natural,Integer Property Calculator work?

This calculator takes a number, decimal, or square root, and checks to see if it has any of the following properties:
* Integer Numbers
* Natural Numbers
* Rational Numbers
* Irrational Numbers
Handles questions like:
Irrational or rational numbers
Rational or irrational numbers
rational and irrational numbers
Rational number test
Irrational number test
Integer Test
Natural Number Test This calculator has 1 input.

What 4 formulas are used for the Rational,Irrational,Natural,Integer Property Calculator?

A number is natural if it is one of the counting numbers (greater than 0), i.e., 1,2,3,4,5,...

Whole Numbers are positive numbers, including 0, with no decimal or fractional parts

Integers are a whole number (no fractions or decimals) positive or negative including the number 0, ...,-5,-4,-3,-2,-1,0

Imaginary numbers are the square root of a negative number