In number theory, the numbers are stated or divided into different types, such as negative numbers, natural numbers, complex numbers, whole numbers, prime numbers, etc.
For eg:
Negative Numbers - -1,-2,-3,-4,-5,-6,-7,-8,-9.....
Odd Numbers -1, 3, 5, 7, 9, 11, 13, 15, 17, 19…..
Even Numbers -2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 . . .
Square Numbers- 4, 9, 16, 25, 36, 49, 64, 81,100 . . .
Cube Numbers- 8, 27, 64, 125, 216, 343, 512 . . .
Prime Numbers- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37....
Perfect Numbers -6, 28, 496, 8128, . . .
Fibonacci Numbers -1, 1, 2, 3, 5, 8, 13, 21, 34, 55...
These all numbers combined some different numbers consist number theory.
Applications of Number Theory:
Number theory is used to find some divisibility tests and other functions also. Some of the applications are listed below:
1. Security System like in banking securities
2.Coding theory
3. E-commerce websites
4. BarcodesMaking of modular designs
5. Memory management system
6. Authentication system