#include using namespace std; const int N = 500000; const long mod = 998244353; bool seen[N]; vector path[N]; map mp[N]; long ans[N]; void dfs(int cur){ seen[cur] = true; vector child; for(auto next:path[cur]){ if(!seen[next]) child.emplace_back(next); } for(auto next:child) dfs(next); for(auto i:child){ for(auto x:mp[i]){ int cnt = x.second - mp[cur][x.first]; for(int j=0; j0) mp[cur][x.first] += cnt; } } } int main(){ int n; cin >> n; vector prime; for(int i=2; i<=1000; i++){ bool is_prime = true; for(int p=2; p*p<=i; p++){ if(i%p == 0){ is_prime = false; break; } } if(is_prime) prime.emplace_back(i); } for(int i=0; i> a; ans[i] = a; for(auto p:prime){ while(a%p==0){ mp[i][p]++; a /= p; } } if(a>1) mp[i][a]++; } for(int i=0; i> u >> v; u--, v--; path[u].emplace_back(v); path[v].emplace_back(u); } dfs(0); for(int i=0; i