Show:
x2
x3
x5
x10
Challenge
100

3x2

6

100

3x1

3

100

5x3

15

100

10x0

0

100

4x4

16

200
6x2

12

200

3x3

9

200

5x6

30

200

10x4

40

200

6x6

36

300

9x2

18

300

3x7

21

300

5x8

40

300

10x7

70

300

7x7

49

400

10x2

20

400

3x8

24

400

5x9

45

400

10x9

90

400

8x8

64

500

12x2

24

500

3x11

33

500

5x12

60

500

10x10

100

500

9x9

81