#include<fstream>
#include<cstring>
using namespace std;
int T,n,pi[1000100];
char s[1000100];

inline int Prefix()
{
	int i,k=0;
	pi[1]=0;
	for(i=2;i<=n;i++)
	{
		while(k && s[k+1]!=s[i])
			k=pi[k];
		if(s[k+1]==s[i])
			k++;
		pi[i]=k;
	}
	for(i=n;i>0;i--)
	{
		if(pi[i]>0 && i%(i-pi[i])==0)
			return i;
	}
	return 0;
}

int main()
{
	ifstream fin("prefix.in");
	ofstream fout("prefix.out");
	fin>>T;
	while(T--)
	{
		fin>>(s+1);
		n=strlen(s+1);
		fout<<Prefix()<<"\n";
	}
	fin.close();
	fout.close();
	return 0;
}