Dhaka Secondary 2010/3

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BdMO
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Dhaka Secondary 2010/3

Unread post by BdMO » Fri Jan 21, 2011 7:05 pm

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 $P$?
Similar: viewtopic.php?f=42&t=382

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leonardo shawon
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Re: Dhaka Secondary 2010/3

Unread post by leonardo shawon » Tue Jan 25, 2011 1:09 pm

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.

long way to go .....

AntiviruShahriar
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Re: Dhaka Secondary 2010/3

Unread post by AntiviruShahriar » Tue Jan 25, 2011 1:23 pm

leonardo shawon wrote:factors of 10 are valued for P. Those are 5 and 2.
why n0t 10???It's n0t prime factor...

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Moon
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Re: Dhaka Secondary 2010/3

Unread post by Moon » Tue Feb 01, 2011 11:39 pm

$P | (N+14)-(N+4)=10$
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