#include<stdio.h>
int main(
void)
{
int i,m;
printf("Enter a number:");
scanf("%d",&
m);
for(i=
2;i<=m/
2;i++
)
if(m%i==
0)
break;
if(i>m/
2&&m!=
1)
printf("%d is a prime number!\n",m);
else
printf("No!\n");
return 0;
}
转载于:https://www.cnblogs.com/liruijia199531/p/3357363.html
