prime no program in c

Solutions on MaxInterview for prime no program in c by the best coders in the world

showing results for - "prime no program in c"
Valeria
16 Jan 2017
1#include<stdio.h>
2main() {
3    int n, i, count=0;
4    printf("Enter Number");
5    scanf("%d",&n);
6   
7    for ( i = 1; i<= n; i++) {
8        if (n % i == 1) {
9            count++;
10        }
11    }
12    if( count == 2) {
13        printf("Prime Number");
14    }
15    else {
16        printf("Not A  Prime Number");
17    }
18}
Lolita
29 Aug 2020
1#include <stdio.h>
2int main() {
3    int n, i, flag = 0;
4    printf("Enter a positive integer: ");
5    scanf("%d", &n);
6
7    for (i = 2; i <= n / 2; ++i) {
8
9        // condition for non-prime
10        if (n % i == 0) {
11            flag = 1;
12            break;
13        }
14    }
15
16    if (n == 1) {
17        printf("1 is neither prime nor composite.");
18    }
19    else {
20        if (flag == 0)
21            printf("%d is a prime number.", n);
22        else
23            printf("%d is not a prime number.", n);
24    }
25
26    return 0;
27}
28
Jihane
19 Jul 2019
1int isPrime(int n) {
2  for (int i = 2; i < n; i++) if (n % i == 0) return 0; 
3  return 1;
4}
Malinda
06 Apr 2020
1#include <stdio.h>
2int main()
3{
4   int i, num, p = 0;
5   printf("Please enter a number: \n");
6   scanf("%d", &num);
7   for(i=1; i<=num; i++)
8   {
9      if(num%i==0)
10      {
11         p++;
12      }
13   }
14   if(p==2)
15   {
16      printf("Entered number is %d "\
17             "and it is a prime number.",num);
18   }
19   else
20   {
21      printf("Entered number is %d "\
22             "and it is not a prime number.",num);
23   }
24}
25
Selyan
01 Sep 2018
1#include<stdio.h>
2int main()
3{
4int n,i;
5printf(“\nEnter the number : “);
6scanf(“%d”,&n);
7for(i = 2; i <= n/2; i++)
8{
9if(n % i ==0)
10{
11break;
12}
13}
14if(i > n/2)
15printf(“\n%d is a Prime Number\n”,n);
16else
17printf(“\n%d is not a Prime Number\n”, n);
18return 0;
19}
20
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