It is all three.
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Some definitions maintain that the set of whole numbers does not include negative numbers. That makes -12 an integer and rational.
As,√144=√12×√12=12, which is an integer Therefore √144 is not irrational
* 12 is a composite integer (meaning that it is not prime). * 12 in factor form is 2*2*3. * 12 is an even number. * 12 is divisible by 1, 2, 3, 4, 6, and 12. * 12 is a two-digit number. * 12 is an integer, as well as a real, rational, whole, and natural number.
It is all three.
-12 is the rational number. In the form of a ratio, it can be written as -12/1.
12 is an integer and not a fraction. However, it can be expressed in rational form as 12/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.