mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    # comb init
    # mod = 1000000007
    nmax = 10 ** 6 + 10  # change here
    fac = [0] * nmax
    finv = [0] * nmax
    inv = [0] * nmax
    fac[0] = 1
    fac[1] = 1
    finv[0] = 1
    finv[1] = 1
    inv[1] = 1
    for i in range(2, nmax):
        fac[i] = fac[i - 1] * i % mod
        inv[i] = mod - inv[mod % i] * (mod // i) % mod
        finv[i] = finv[i - 1] * inv[i] % mod

    def comb(n, r):
        if n < r:
            return 0
        else:
            return (fac[n] * ((finv[r] * finv[n - r]) % mod)) % mod

    def P(n, r):
        return (fac[n] * finv[n - r])%mod

    N, K, M = map(int, input().split())
    if M == 1:
        ans = pow(N, N-1, mod)
        for c in range(2, N + 1):
            if K % c == 0:
                ans = (ans + (P(N - 2, c - 2) * pow(N, N - c, mod)) % mod) % mod
        print(ans)
        exit()
    ans = 0
    for c in range(2, N+1):
        ans = (ans + ((P(N - 2, c - 2) * c)%mod * pow(N, N - c, mod))%mod)%mod
        if K % c == 0:
            ans = (ans - (P(N - 2, c-2)* pow(N, N - c, mod))%mod)%mod
    print(ans)


if __name__ == '__main__':
    main()