How quickly can you find me?
The product of my digits is 225.
I am not a multiple of 5.
Am I a multiple of 13?
Am I real? Am I rational? Am I irrational?
Now divide me by 11. Is the answer real? Is it rational?
Now multiply me by pi. Is the answer real? Is it rational?
Integers, Natural numbers, Rational numbers, Whole numbers, Complex numbers, All numbers.