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- #include <stdio.h>
- int prime_check(int n);
- int main(void)
- {
- int sc;
- printf("#양수 입력 : ");
- scanf("%d", &sc);
- prime_check(sc);
- return 0;
- }
- int prime_check(int n)
- {
- int i,j,k;
- int line=0;
- for(i=2;i<= n ;i++){
- k = 1;
- for(j=2; j< i;j++)
- {
- if((i%j) == 0){k =0;break;}
- }
- if(k == 1)
- {printf("%5d", i); line++; if((line%5)==0) printf("\n");}
- }
- }
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