#include<stdio.h>
#include<math.h>
int main()
{
int n,k,i;
scanf(“%d”,&n);
k=sqrt(n)+0.01;
for(i=2;i<=k;i=i+1)
{
if(n%i==0)
break;
}
if(i==k+1)
printf(“This is a prime.”);
else
printf(“This is not a prime.”);
return 0;
}
#include<math.h>
int main()
{
int n,k,i;
scanf(“%d”,&n);
k=sqrt(n)+0.01;
for(i=2;i<=k;i=i+1)
{
if(n%i==0)
break;
}
if(i==k+1)
printf(“This is a prime.”);
else
printf(“This is not a prime.”);
return 0;
}
版权声明：本文为qq_42066153原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。