신비한 숫자의 세계
9 x 0+ 1 = 1
9 x 1 + 2 = 11
9 x 12 + 3 = 111
9 x 123 + 4 = 1111
9 x 1234 + 5 = 11111
9 x 12345 + 6 = 111111
1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = 98765
123456 x 8 + 6 = 987654
1234567 x 8 + 7 = 9876543
12345678 x 8 + 8 = 98765432
123456789 x 8 + 9 = 987654321
1 x 9 + 1 x 2 = 11
12 x 18 + 2 x 3 = 222
123 x 27 + 3 x 4 = 3333
1234 x 36 + 4 x 5 = 44444
12345 x 45 + 5 x 6 = 555555
123456 x 54 + 6 x 7 = 6666666
1234567 x 63 + 7 x 8 = 77777777
12345678 x 72 + 8 x 9 = 888888888
123456789 x 81 + 9 x 10 = 9999999999
1x9-1=8
21x9-1=188
321x9-1=2888
4321x9-1=38888
54321x9-1=488888
654321x9-1=5888888
7654321x9-1=68888888
87654321x9-1=788888888
987654321x9-1=8888888888
9x9+7=88
98x9+6=888
987x9+5=8888
9876x9+4=88888
98765x9+3=888888
987654x9+2=8888888
9876543x9+1=88888888
98765432x9+0=888888888
65359477124183x17x1=1111111111111111
65359477124183x17x2=2222222222222222
65359477124183x17x3=3333333333333333
65359477124183x17x4=4444444444444444
65359477124183x17x5=5555555555555555
65359477124183x17x6=6666666666666666
65359477124183x17x7=7777777777777777
65359477124183x17x8=8888888888888888
65359477124183x17x9=9999999999999999