This is a mathematical challenge, and it's been said that:
If you're an engineer, you should be able to solve it in (under) three minutes,
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.
What is the missing number in this logical series?
1, 2, 6, 42, 1806, ___ ???
The answer is the password to open the spreadsheet that is attached to this email. If you figure it out, open the spreadsheet, type your name in, save it and resend it to your friends.

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3,263,**2 architect임에도 불구하고 2분이 채 걸리지 않았음....
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안에 왠 이름들이?
저도 2분정도에 알아냈네요 ㅎ
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재밌네요... 1분정도 걸린것 같습니다. ㅋ
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If you're a lawyer, probably never. 라고 써있었는데 우리나라 '젊은' 변호사들은 15초면 풀듯하군요
저는 곱하기 한참 하느라 엔지니어의 자존심만 지켰습니다.
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3263442... 9초걸렸습니다... ㅠㅠ
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1, 2,(3), 6(2*3),(7), 42(6*7), (43), 1806(42*43), (1807) ...
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10초 안걸린거 같은데 제대로 안재서 모르겠네요 ㅋ;;
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