#include #include #ifdef LOCAL #include #define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else #define debug(...) (static_cast(0)) #endif using namespace atcoder; using mint=modint1000000007; using namespace std; using ll=long long; using ul=unsigned long long; int dx[9] = {-1, 1, 0, 0, -1, -1, 1, 1, 0}; int dy[9] = {0, 0, -1, 1, -1, 1, -1, 1, 0}; using Graph=vector>; ll op(ll a,ll b){return min(a,b);} ll e(){return 2e9;} int main(){ int N,Q; cin>>N>>Q; vector>B(100001); for(int i=0;i<100001;i++)B[i].push_back(-1); for(int i=0;i>a; for(int j=1;j*j<=a;j++){ if(a%j==0){ B[j].push_back(i); if(a/j!=j)B[a/j].push_back(i); } } } while(Q--){ int l,r,k; cin>>l>>r>>k; l--,r--; cout<