题目就差把程序写脸上了（

就这还能有人WA就离谱

code

#include<bits/stdc++.h>
using namespace std;
int i=2,n;
int main(){
	cin>>n;
	cout<<n<<"=1*";
	while(i!=n){
		if(n%i==0){
			cout<<i<<"*";
			n/=i;
		}
		else i++;
	}
	cout<<n<<endl;
	return 0;
}