def test_powers(self):
self.assertEqual(powers(1, 1), 1)
self.assertEqual(powers(1, 2), 1)
self.assertEqual(powers(1, 3), 1)
self.assertEqual(powers(2, 1), 2)
self.assertEqual(powers(3, 1), 3)
self.assertEqual(powers(2, 2), 4)
self.assertEqual(powers(3, 2), 9)
self.assertEqual(powers(3, 4), 9)
self.assertEqual(powers(3, 5), 9)
self.assertEqual(powers(3, 6), 18)
self.assertEqual(powers(10, 1), 9)
self.assertEqual(powers(10, 2), 13)
self.assertEqual(powers(4, 5), 13)
def test_project_euler(self):
self.assertEqual(powers(100, 100), 972)