2017-04-04 12:34:57拜足

數字 撲朔迷您 61

想個4位數 ,假設是6519,

6519 x 7561 = 46568199

8199 x 41 = 336519

 

我可以猜出 336519

 

再想個4位數 ,假設是9898,

9898 x 7561 = 74838778

8778 x 41 = 359898

 

我可以猜出 359898

 

拜足 2017-04-04 12:35:38

41 x 61 = 2501
561 x 41 = 23001
7561 x 41 = 310001
97561 x 41 = 4000001
6097561 x 41 = 250000001
56097561 x 41 = 2300000001
756097561 x 41 = 31000000001
9756097561 x 41 = 400000000001
609756097561 x 41 = 25000000000001