If $N$ and $P$ are integers greater than $1$ and if $P$ is a factor of both $N+4$ and $N+14$, what are the values of $P$?
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Dhaka Secondary 2010/3
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Please don't post problems (by starting a topic) in the "Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
Please don't post problems (by starting a topic) in the "Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
- leonardo shawon
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Re: Dhaka Secondary 2010/3
factors of 10 are valued for P. Those are 5 , 2 and 10.
Last edited by leonardo shawon on Tue Jan 25, 2011 2:34 pm, edited 1 time in total.
Ibtehaz Shawon
BRAC University.
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BRAC University.
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Re: Dhaka Secondary 2010/3
why n0t 10???It's n0t prime factor...leonardo shawon wrote:factors of 10 are valued for P. Those are 5 and 2.
Re: Dhaka Secondary 2010/3
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin
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