Answer: natural; whole; integer; rational; real
Explanation:
16/4=4
Natural: numbers that are greater than 0.
4 is greater than 0
Whole: numbers that are equal or greater than 0
4 is equal or greater than 0
Integer: numbers that have no decimal points
4 has no decimal points
Rational: numbers that can be written as fraction
4=16/4 which is fraction
It is already rational, so it will not be irrational.
Real: all number you can name are real number
4 is four