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- #include<stdio.h>
- #include<conio.h>
- #include<math.h>
- int nto(int n){
- if(n==0 || n==1 ) return 0;
- for(int i=2;i<= sqrt(n);i++)
- if(n%i==0) return 0 ;
- return 1 ;
- }
- int ktra(long n){
- int j;
- long b;
- while(b>0){
- j=b%10;
- b=b/10;
- if(nto(j)==0) return 0;}
- return 1;
- }
- void main(){
- clrscr();
- long dem=0,k;
- printf("\n cac so thoa man la:");
- for(k=100000;k<=999999;k++)
- if(nto(k) && ktra(k)){
- printf("%8ld",k);
- dem=dem+1;}
- printf("\n so cac so thoa man la:%2ld",dem);
- getch();
- }
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