答案:#include #include int main(){int i,j,n,a[101];for (i=1;i a[i]=i;a[1]=0;for (i=2;i for (j=i+1;j {if(a[i]!=0&&a[j]!=0)if (a[j]%a[i]==0)a[j]=0;}printf("\n");for (i=2,n=0;i {if(a[i]!=0){printf("%5d",a[i]);n++;}if(n==10){printf("\n");n=0;}}printf("\n");return 0;}