Lets write a C program to check whether user input number is prime number or not, using while loop. Prime Number: Any natural number which is greater than 1 and has only two factors i.e., 1 and the number itself is called a prime number.

The C program successfully checks whether a given number is prime or not using a while loop. By iterating through the numbers from 2 to the square root of the number and checking for any divisors, it determines the prime status and displays the result on the screen.

This program checks whether a given number is a prime number or not. The program takes an input integer from the user and assigns it to the variable "i" . It then initializes a variable "n" with the value 2 and a variable "prime" with the value 0.

Apr 10, 2025 · C Program for Prime Numbers Using While Loop Algorithm to Find Prime Number Program in C. STEP 1: Take num as input. STEP 2: Initialize a variable temp to 0. STEP 3: Initialize the iterator variable loop to 2. STEP 4: Iterate a “while” with the condition, loop <= num/2. STEP 5: If num is divisible by loop iterator, then increment temp.

May 23, 2018 · In this article, I will show you how you can create a program for checking prime number using a while loop in C, but before we proceed further, let's clear the definition of prime number first. Prime Number: A Prime Number is a number greater than 1 and which is only divisible by 1 and the number itself.

The trick is to have a test variable, and each iteration through your while loop, check the test variable against your current number. Always start the test variable at 2 (every natural number > 0 is divisible by 1)

Oct 12, 2024 · In this article, you will learn how to check whether the given input number is a prime number or not a prime number. To solve this problem we will use the various approaches like while loop , do-while loop , for loop , function , etc.

Jan 1, 2016 · Program to find Prime Number or Not in C is used to check whether the given number is Prime or Not using While loop and print it in the output screen.

Lets write a C program to find and print/display all the prime numbers between 2 integer values input by the user, using nested while loop. Prime Number: Any natural number which is greater than 1 and has only two factors i.e., 1 and the number itself is called a prime number.

In this C Program to Find Prime Number, We initialized the integer i value to 1, and also (i <= Number) condition will help the For Loop to terminate when the condition fails. Within the C Programming for loop, there is an If statement to check whether divisible by i …