Prime number in c

Prime number c program

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

Prime Number Check Program in C

#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:

Source: w3schools.in

Prime number in c

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);

Source: studyfame.com

Similar codes

3 votes167 views2 answers
Uuidv4 javascript
C
1 vote177 views1 answer
C fopen
C
0 vote238 views1 answer
Declare integer c
C
1 vote144 views1 answer
What is "," in programming syntax
C
0 vote260 views1 answer
Mettre int dans string c %
C
0 vote211 views2 answers
Boom miners zerg
C
0 vote183 views2 answers
Mongo connect db
C
1 vote223 views4 answers
2021
C
0 vote179 views2 answers
Vowel or consonant in c
C
0 vote186 views1 answer
Function of science writing of a number
C