C++ Prime Number Programs

Introduction

Prime Number: http://en.wikipedia.org/wiki/Prime_number

Emirp Number: http://en.wikipedia.org/wiki/Emirp

Some Facts about Prime Numbers

The following facts are good to know before writing prime numbers' programs:

1. There is only one EVEN prime number i.e. 2.

2. For a prime test, you don't have to test all the numbers. You can test a number up to its square root only.

3. The C++ <cmath> header provides a sqrt() function. Use <math.h> header for C.

Programs

This collection contains the following C++ programs:

• Prime Number Test
• Prime Numbers Generation
• Prime Numbers Generation (Reverse)
• Emirp Number Test
• Prime Factors ...

Any suggestions to improve or enhance these programs are always welcome.

License

MIT