Show:
x3
x4
x5
x6
x7
100

3x2

6

100

4x10

40
100

5x10

50

100

6x2

12

100

7x10

70

200

3x3

9

200

4x3

12

200

5x2

10

200

6x4

24

200

7x2

14

300

3x5

15

300

4x5

20
300

5x5

25

300

6x5

30

300
7x5

35

400

3x7

21

400

4x7

28

400

5x9

45

400

6x9

54

400

7x6

42

500

3x8

24
500

4x9

36

500

5x13

65

500

6x8

49

500

7x8

56