Prime Numbers in Every Language

Published on 01 November 2018 (Updated: 02 May 2020)

Welcome to the Prime Number page! Here, you'll find a description of the project as well as a list of sample programs written in various languages.

Description

A prime number is a positive integer which is divisible only by 1 and itself. For example: 2, 3, 5, 7, 11, 13

Since every number is divisible by One so, Two is the only even and the smallest prime number.

Create a file called Prime Number using the naming convention appropriate for your language of choice.

Write a sample program which accepts an integer on the command line and outputs if the integer is a Prime number or not.

The following table contains various test cases that you can use to verify the correctness of your solution:

Description	Input	Output
No Input		"Usage: please input a non-negative integer"
Empty Input	""	"Usage: please input a non-negative integer"
Invalid Input: not a number	a	"Usage: please input a non-negative integer"
Invalid Input: not an integer	6.7	"Usage: please input a non-negative integer"
Invalid Input: negative	-7	"Usage: please input a non-negative integer"
Sample Input: Zero	0	Composite
Sample Input: One	1	Composite
Sample Input: Two	2	Prime
Sample Input: Small Composite	4	Composite
Sample Input: Small Prime	7	Prime
Sample Input: Large Composite	4011	Composite
Sample Input: Large Prime	3727	Prime