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Prime Number Check Program in C

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Repulsive Rattlesnake answered on March 25, 2021 Popularity 10/10 Helpfulness 7/10

answer Prime Number Check Program in C

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Prime Number Check Program in C

Comment

#include <stdio.h> 

main() {
  int n, i, c = 0;
  printf("Enter any number n:");
  scanf("%d", &n);

  //logic
  for (i = 1; i <= n; i++) {
      if (n % i == 0) {
         c++;
      }
  }

  if (c == 2) {
  printf("n is a Prime number");
  }
  else {
  printf("n is not a Prime number");
  }
  return 0;    
}
Program Output:

Popularity 10/10 Helpfulness 7/10 Language c

Source: www.w3schools.in

Tags: c

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Contributed on Jan 01 2022

Repulsive Rattlesnake

0 Answers Avg Quality 2/10

Closely Related Answers

find prime number using c

Comment

#include <stdio.h> 

main() {
  int n, i, c = 0;
  printf("Enter any number n:");
  scanf("%d", &n);

  //logic
  for (i = 1; i <= n; i++) {
      if (n % i == 0) {
         c++;
      }
  }

  if (c == 2) {
        printf("n is a Prime number");
  }
  else {
         printf("n is not a Prime number");
  }
  return 0;    
}
Program Output:

Popularity 9/10 Helpfulness 7/10 Language c

Source: www.w3schools.in

Tags: c find

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Contributed on Jan 04 2023

Pawan Rathour

0 Answers Avg Quality 2/10

prime number in c

Comment

#include<stdio.h>
void main(){
    int num, i;
    int cp = 1;
    printf("Enter a number = ");
    scanf("%d",&num);

    if(num > 0){
        for(i = 2; i < num; i++){
            if(num % i == 0){
                cp = 0;
            }
        }
        if(cp == 1){
            printf("%d is a prime number.", num);
        }
        else{
            printf("%d isn't a prime number.", num);
        }
    }
}

Popularity 9/10 Helpfulness 5/10 Language c

Source: Grepper

Tags: c

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Contributed on Feb 24 2022

Excited Earthworm

0 Answers Avg Quality 2/10

prime number program in c

Comment

#include <stdio.h>

// Mahmudur Rahman Mahin

int main()
{
    int i, n, flag = 1;
    scanf("%d", &n);
    if (n<=1)
    {
        flag = 0;
    }
    else{
        for (i = 2; i < n; i++)
        {
        if (n % i == 0)
        {
            flag = 0;
            break;
        }
        else
            {
            flag = 1;
            }
        }
    }
    
     if (flag == 1)
        {
            printf("Prime number");
        }
    else {
        printf("Not Prime Number");
    }
    return 0;
}

Popularity 8/10 Helpfulness 5/10 Language c

Source: Grepper

Tags: c

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Contributed on May 05 2023

Depressed Dunlin

0 Answers Avg Quality 2/10

check prime number or not c

Comment

#include <stdio.h>

int main() {

  int n, i, flag = 0;
  printf("Enter a positive integer: ");
  scanf("%d", &n);


  if (n == 0 || n == 1)
    flag = 1;

  for (i = 2; i <= n / 2; ++i) {


    if (n % i == 0) {
      flag = 1;
      break;
    }
  }

  // flag is 0 for prime numbers
  if (flag == 0)
    printf("%d is a prime number.", n);
  else
    printf("%d is not a prime number.", n);

  return 0;
}

Popularity 9/10 Helpfulness 5/10 Language c

Source: Grepper

Tags: c

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Contributed on Apr 23 2022

SaadMakhdoom

0 Answers Avg Quality 2/10

check if prime c

Comment

int isPrime(int n) {
    if (n < 2) return 0;
    for (int i = 2; i <= n / 2; i++)
        if (n % i == 0) return 0;
    return 1;
}

Popularity 10/10 Helpfulness 4/10 Language c

Source: Grepper

Tags: c

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Contributed on Mar 25 2021

Palsmo

0 Answers Avg Quality 2/10

prime number in c

Comment

#include<stdio.h>  
int main(){    
int n,i,m=0,flag=0;    
printf("Enter the number to check prime:");    
scanf("%d",&n);    
m=n/2;    
for(i=2;i<=m;i++)    
{    
if(n%i==0)    
{    
printf("Number is not prime");    
flag=1;    
break;    
}    
}    
if(flag==0)    
printf("Number is prime");     
return 0;  
 }

Popularity 9/10 Helpfulness 3/10 Language c

Source: www.javatpoint.com

Tags: c

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Contributed on Jun 19 2022

Rasel Ahmed

0 Answers Avg Quality 2/10

check whether a number is prime or not in c

Comment

int n=7,i,flag=0;
	for(i=2;i<n/2;i++){
		if(n%i==0){
			flag=1;
			break;
		}
	}

	if(flag==0){
	printf("Prime number");

	}else{
		printf("not prime number");
	}

Popularity 8/10 Helpfulness 2/10 Language c

Source: Grepper

Tags: c

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Contributed on Sep 12 2022

Matt Stoner

0 Answers Avg Quality 2/10

prime number in c

Comment

flag=0;
scanf("%d", &num);
for(i=2;i<=(num/2);i++)
    {
       if(num%i==0)
          flag=1;
    }
    if(flag==0)
        printf("%d is a prime number",num);

Popularity 1/10 Helpfulness 1/10 Language c

Source: www.studyfame.com

Tags: c

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Contributed on Feb 05 2022

Kind Kea

0 Answers Avg Quality 2/10

c program for prime number

Comment

-2

prime or not

Popularity 8/10 Helpfulness 1/10 Language whatever

Source: Grepper

Tags: c whatever wha

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Contributed on Jan 19 2023

2111 BINGI ADARSH

0 Answers Avg Quality 2/10

Prime Number Check Program in C

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Prime Number Check Program in C

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find prime number using c

prime number in c

prime number program in c

check prime number or not c

check if prime c

prime number in c

check whether a number is prime or not in c

prime number in c

c program for prime number

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