Introduction
we have learnt about various type of number in our earlier classes. Let us review them and learn more about numbers.
Natural Numbers
Counting numbers are called natural numbers.
The collection of natural numbers is denoted by N and is written as N = {1,2,3,4,5,6,7,8,.............}
- The least natural number is 1
- There are infinitly many natural numbers.
Whole number
all natural numbers together with zero form the collection of all whole numbers written as W of all whole numbers written as
W={0,1,2,3,4,5,6,7,8,...............}
- The least whole number is 0.
- There are infinitly many whole numbers.
- Every natural number is a whole number.
- All whole numbers are not natural numbers, as 0 is a whole number which is not a natural number.
