素数判断程序-优快云博客

本文链接：https://blog.youkuaiyun.com/lizeyu2011/article/details/22197881

本文提供了一个简单的C语言程序，该程序能够接收用户输入的一个正整数，并判断该数是否为素数。通过定义一个名为prime的函数来实现素数判断的功能。

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源程序如下：

mian()

{

int number;

printf(“请输入一个正整数：\n”);

scanf(“%d”,&number);

if (prime(number))

printf(“\n %d是素数.”,number);

else

printf(“\n %d不是素数.”,number);

}

int prime(number) /*此函数用于判别素数*/

int number;

{

int flag=1,n;

for(n=2;n<number/2&&flag==1;n++)

if (number%n==0)

flag=0;

return(flag);

}

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验八 函数

验八函数