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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.     int n, i, flag = 1,c=0;
  6.  
  7.     printf("Enter a number: \n");
  8.  
  9.     scanf("%d", &n);
  10.  
  11.     for (i = 2; i <= n/2; i++) {
  12.  
  13.         if (n % i == 0) {
  14.             flag = 0;
  15.             break;
  16.         }
  17.     }
  18.  
  19.     if (flag == 1) {
  20.    printf("number %d has 0 divisors so\n",n);
  21.         printf("this is a prime number");
  22.     }
  23.     else {
  24.  
  25.    for (i=2;i<n;i++) {
  26.         if (n%i==0) {
  27.             printf("%d\n",i);
  28.          c++;}}
  29.    printf("\nnumber %d has %d divisors",n,c);
  30.     }
  31.     }
  32.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
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Standard input is empty
stdout
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Enter a number: 
2
4
8
2741
5482
10964

number 21928 has 6 divisors
https://ideone.com/GCBKKU
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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