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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n;
  5. 	printf("enter a number:2");
  6. 	scanf("%d",&n);
  7. 	if( n<=1){
  8. 	printf("not prime");
  9. 	return 0;}
  10. 	for(int i=2; i<n;i++){
  11. 	if (n%i==0){
  12. 	printf("not prime");
  13. 	return 0;
  14. }
  15. }
  16. printf("prime");
  17. return 0;}
  18.  
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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enter a number:2not prime
https://ideone.com/t27tEn
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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