The number system is the basis of entire basic numeracy. Most of its content is already been studied at school level. Almost one-fifth of every competitive examination questions are from this chapter, so it is expected from the students to prepare this chapter well.
Number System Chart
Now, let us look at the type of numbers one by one.
Did You Know
The number 2 is the only even prime number.
There are 25 prime numbers between 1 and 100.
The two consecutive numbers are always co-prime numbers.