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#1 2008-08-21 07:16:02
- tony123
- Member
- Registered: 2007-08-03
- Posts: 229
Form a nine digit number
Form a nine digit number using the digits 1 through 9 exactly once, such that the first (leftmost) eight digits form a number divisible by 8, the first seven digits form a number divisible by 7, and so on.
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#2 2008-08-21 23:49:25
- TheDude
- Member
- Registered: 2007-10-23
- Posts: 361
Re: Form a nine digit number
78365492 is not divisible by 8.
Wrap it in bacon
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#3 2008-08-22 00:43:05
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Form a nine digit number
Why did the vector cross the road?
It wanted to be normal.
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