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  1. #include <stdio.h>
  2. #include<math.h>
  3.  
  4. int is_prime(int n){
  5. 	for (int i = 2; i <= sqrt(n); ++i)
  6. 		if((n%i) ==0)
  7. 			return 0;
  8. 	return 1;
  9. }
  10. int nth_prime(int n){
  11. 	int c=2;
  12. 	int i=0;
  13. 	while(i<n)
  14. 	{
  15. 		if(is_prime(c))
  16. 			++i;
  17. 		++c;
  18. 	}
  19. 	return c-1;
  20. }
  21. int main(int argc, char const *argv[])
  22. {
  23. 	int n;
  24. 	printf("please give a value for n");
  25. 	scanf("%d",&n);
  26. 	printf("the %dth prime is: %d",n,nth_prime(n));
  27. 	return 0;
  28. }
Success #stdin #stdout 0.01s 5316KB
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Standard input is empty
stdout
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please give a value for nthe 5232th prime is: 51133
https://ideone.com/tw4AP1
1000
language:
C (clang 8.0)
created:
1 day ago
visibility:
public

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