1.000 : 9.801 = 0, 10 20 30 40 50 60 70 80 9 10 11 12 13 14 ...
100 : 891 = 0, 11 22 33 44 55 66 77 88 99 00 11 22 33 44 55 66 ...
1.000 : 8.991 = 0, 111 222 333 444 555 666 777 888 999 000 111 ...
10.000 : 89.991 = 0, 1111 2222 3333 4444 5555 6666 7777 8888 ...
100.000 : 899.991 = 0, 11111 22222 33333 44444 55555 66666 ...
Es fácil continuar observando los dos números de partida.
12 × 42 = 24 × 21
12 × 63 = 36 × 21
12 × 84 = 48 × 21
13 × 62 = 26 × 31
23 × 96 = 69 × 32
24 × 63 = 36 × 42
24 × 84 = 48 × 42
26 × 93 = 39 × 62
36 × 84 = 48 × 63
46 × 96 = 69 × 64
14 × 82 = 28 × 41
23 × 64 = 46 × 32
34 × 86 = 68 × 43
13 × 93 = 39 × 31