Show:
x3
x4
x5
x6
x9
100

3x3

9

100

4x3

12

100

5x3

15

100

6x3

18

100

9x3

27

200

3x4

12

200

4x4

16

200

5x4

20

200

6x4

24

200

9x4

36

300

3x5

15

300

4x5

20

300

5x5

25

300

6x5

30

300

9x5

45

400

3x6

18

400

4x6

24

400

5x6

30

400

6x6

36

400

9x6

54

500

3x7

21

500

4x7

28

500

5x7

35

500

6x7

42

500

9x7

63