Combinatorics

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Akash7
Posts: 5
Joined: Thu Mar 15, 2018 10:31 am
Location: Dhaka

Combinatorics

How many pairs of natural number can be formed whose LCM will be 7000?This problem has been taken from bdmo regional contest. As I am a new learner,please help me solving the problem in detail.

samiul_samin
Posts: 999
Joined: Sat Dec 09, 2017 1:32 pm

Re: Combinatorics

I think this problem should be posted @ divisional math olympiad forum.
You can get in depth solution of this problem at the book "A path to combinatorics for undergraduates " by Titu andresscu.You can easily get the pdf version of that book.

Akash7
Posts: 5
Joined: Thu Mar 15, 2018 10:31 am
Location: Dhaka

Re: Combinatorics

The problem is solved for ordered pairs in your suggested book.But I want the solution for the unordered pairs.Detailed help will be much appreciated.

M. M. Fahad Joy
Posts: 120
Joined: Sun Jan 28, 2018 11:43 pm
Location: Bhulta, Rupganj, Narayanganj
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Re: Combinatorics

samiul_samin wrote:
Sun Mar 25, 2018 7:04 pm
I think this problem should be posted @ divisional math olympiad forum.
You can get in depth solution of this problem at the book "A path to combinatorics for undergraduates " by Titu andresscu.You can easily get the pdf version of that book.
Has there any Bangla book?
Math is the main inspiration of my life.

samiul_samin
Posts: 999
Joined: Sat Dec 09, 2017 1:32 pm

Re: Combinatorics

M. M. Fahad Joy wrote:
Tue Apr 03, 2018 6:47 pm
samiul_samin wrote:
Sun Mar 25, 2018 7:04 pm
I think this problem should be posted @ divisional math olympiad forum.
You can get in depth solution of this problem at the book "A path to combinatorics for undergraduates " by Titu andresscu.You can easily get the pdf version of that book.
Has there any Bangla book?
No,not Bangla version of this book is available.