they are called negative numbers. you show them like this. 3,2,1,0,-1,-2,-3,-4
-------------------------------------------------
If you are referring to fractions then the top number is called the numerator and the bottom number is called the denominator.
---------------------------------------------------
A little number like the 2 in the following expression"x2" is called a subscript.
Chat with our AI personalities
There weren't any numbers given below.
A number will always have 1 and itself as factors. And thus the only numbers with 2 factors will be prime numbers. The only prime numbers below 20 are 2, 3, 5, 7, 11, 13, 17 and 19, and thus these are the only numbers below 20 that have 2 factors.
They are called prime numbers.
See the link below.
This set of numbers is called "Whole Numbers".