what are natural numbers?

Question

witch of the following are natural numbers? 

pie

7

2

or 4 over 6 and why?

Answer 1

Natural Numbers are the simplest set of numbers, and are sometimes called the counting numbers.  The natural numbers include all whole numbers greater than or equal to one.  If we let N = the set of Natural Numbers:

 

N = {1, 2, 3, 4, 5, 6, ..., ∞}

 

N does not include fractions or decimals or negative numbers.

• pi = 3.14159...
• 4/6 = 2/3