數學挑戰！
This is a mathematical challenge, and it's been said that:
這是項數學挑戰！有這麼一種說法：
If you're an engineer, you should be able to solve it in (under) three minutes (more like 30 seconds), if you're an architect, in three hours; if you're a doctor, in six hours; if you're an accountant, in three months and if you're a lawyer, probably never.
你若是工程師，你應該可在三分鐘內（３０秒左右吧）解開這道題；你若是建築師，給你三小時；你若是醫生，給你六小時；你若是會計師，三個月吧～假若你是律師，大概永遠也解不出來。
if you're good at math or logical problems, solve this challenge and the answer is the password to open the weburl to which you can add your name to the hall of fame.
你若擅長數學或邏輯性的問題，解開這道挑戰題，並以答案為密碼，打開网址，將你的名字加在名人堂裡面。
What is the missing number in this logical series?
問題如下：空格中的數字為？
1, 2, 6, 42, 1806, ____???
答案就是名人密碼，你若顺利解題，請將你的名字加上名人堂，成功后再寄給你的朋友。
QQ/MSN<极限数学挑战！>给好友！
This is a mathematical challenge, and it's been said that:
這是項數學挑戰！有這麼一種說法：
If you're an engineer, you should be able to solve it in (under) three minutes (more like 30 seconds), if you're an architect, in three hours; if you're a doctor, in six hours; if you're an accountant, in three months and if you're a lawyer, probably never.
你若是工程師，你應該可在三分鐘內（３０秒左右吧）解開這道題；你若是建築師，給你三小時；你若是醫生，給你六小時；你若是會計師，三個月吧～假若你是律師，大概永遠也解不出來。
if you're good at math or logical problems, solve this challenge and the answer is the password to open the weburl to which you can add your name to the hall of fame.
你若擅長數學或邏輯性的問題，解開這道挑戰題，並以答案為密碼，打開网址，將你的名字加在名人堂裡面。
What is the missing number in this logical series?
問題如下：空格中的數字為？
1, 2, 6, 42, 1806, ____???
答案就是名人密碼，你若顺利解題，請將你的名字加上名人堂，成功后再寄給你的朋友。
QQ/MSN<极限数学挑战！>给好友！
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