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  1.  #include <stdio.h>
  2.  int main() {  
  3.  int num, i, count=0;
  4.  printf("enter the value of num:");
  5.  scanf("%d",&num);
  6.  
  7.  for(i=2;i<num;i++){
  8.  	if(num%i==0){
  9.  		count++;
  10.  		break;
  11.  	}
  12.  	else if(count==0)
  13.  	printf("This is prime number");
  14.  	else
  15.  	printf("This is not prime number");
  16.  }
  17.  return 0;
  18.  }
  19.  
Success #stdin #stdout 0s 9432KB
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enter the value of num:This is prime numberThis is prime numberThis is prime number
https://ideone.com/Q1fk7X
language:
C (clang 8.0)
created:
6 years ago
visibility:
public

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