SOLUTION: Hello, I know the number 4 is a natural and whole number. But is it an integer, real or irrational? Why or why not? Thank you very much~!

Algebra ->  Real-numbers -> SOLUTION: Hello, I know the number 4 is a natural and whole number. But is it an integer, real or irrational? Why or why not? Thank you very much~!       Log On


   

Question 46071: Hello,
I know the number 4 is a natural and whole number. But is it an integer, real or irrational? Why or why not?
Thank you very much~!
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
An integer is not a decimal or a fraction (not 2.11 or 3/4), so they can be: -2,-1,0,1,2
Four is an integer. Four is rational because it terminates(it does not go on forever like pi). Also, this is a real number. Real numbers are all numbers excluding imaginery(i).