Give the square root
Give the cube root
Give all +factors
100

16

4

100

27

3

100

12

1, 2, 3, 4, 6, 12

200

36

6

200

8

2

200

18

1, 2, 3, 6, 18

300

81

9

300

125

5

300

72

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

400

64

8

400

64

4

400

51

1, 3, 17, 51

500

49

7

500

216

6

500

100

1, 2, 4, 5, 10, 20, 25, 50, 100