#include<iostream>
using namespace std;
int main() {
int i, j;
bool isprime;
for (i = 1; i <= 100; i++) {
isprime = true;
//see if the number is evenly divisible
for (j = 2; j <= i / 2; j++)
//if it is,then it is not prime
if ((i%j) == 0)isprime = false;
if (isprime)
cout << i << "is prime.\n";
}
return 0;
}
查找素数
原文：https://www.cnblogs.com/40630762-/p/12079281.html
