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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int m,i,k;
  5.     k=m-1;
  6.     scanf("%d",&m);
  7.     for(i=2;i<m;i++)
  8. {
  9.     if(m%i==0)break;}
  10.     if(i>k)
  11.     printf("%d is\n",m);
  12.     else
  13.     printf("%d is not\n",m);
  14.  
  15. 	return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
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13
stdout
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13 is not
https://ideone.com/NGdvKD
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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