#include using namespace std; #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) begin(v),end(v) template inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; } template inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; } using ll = long long; using pii = pair; constexpr ll INF = 1ll<<30; constexpr ll longINF = 1ll<<60; constexpr ll MOD = 1000000007; constexpr bool debug = false; //---------------------------------// std::vector sieve(int n) { std::vector res; std::vector is_prime(n + 1, true); is_prime[0] = is_prime[1] = false; for (int i = 2; i * i <= n; i++) { if (!is_prime[i]) continue; for (int j = i * i; j <= n; j += i) is_prime[j] = false; } for (int i = 2; i <= n; ++i) if (is_prime[i]) res.emplace_back(i); return res; } namespace tk { template T mod_pow(T x, T n, const T & mod) { assert(mod > 0); assert(n >= 0); x = (x % mod + mod) % mod; T res = 1 % mod; while (n > 0) { if (n & 1) res = res * x % mod; x = x * x % mod; n >>= 1; } return res; } } // namespace tk int main() { int A, B, N; cin >> A >> B >> N; auto primes = sieve(B); ll ans = 1; for (int p : primes) { for (ll p2 = p; p2 <= B; p2 *= p) { int po = tk::mod_pow(B / p2 - (A - 1) / p2, N, MOD - 1); ans = ans * tk::mod_pow(p, po, MOD) % MOD; } } cout << ans << endl; }