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BdMO National Olympiad 2013: Problemsets

Last postby*Mahi* « Fri Jan 10, 2014 2:09 am
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byBdMO »Fri Jan 10, 2014 1:56 am »in Geometry

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Forum Guide & Rules

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byMoon »Tue Dec 07, 2010 12:53 pm »in Geometry

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Welcome to the Official BdMO Online Forum

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byMoon »Tue Dec 07, 2010 10:14 am »in Geometry

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How to use LaTeX

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byMoon »Mon Dec 06, 2010 11:47 pm »in Site Support
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DIO Equation :D

Last postbyAsif Hossain « Tue Sep 14, 2021 9:08 pm
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byAourkoPChakraborty »Sat May 15, 2021 9:05 am

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Last post byAsif Hossain
Tue Sep 14, 2021 9:08 pm
a question of primitive root

Last postbyrulin « Tue Jun 29, 2021 4:29 pm
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byrulin »Wed Jun 16, 2021 9:56 am

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Tue Jun 29, 2021 4:29 pm
A problem from number theory

Last postbyMehrab4226 « Tue Jun 15, 2021 10:30 pm
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byNaeem Mashkur »Tue Jun 15, 2021 7:03 am

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Tue Jun 15, 2021 10:30 pm
Cool modular arithmetic prob

Last postbyMehrab4226 « Sun Jun 13, 2021 8:29 pm
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byAlmx26 »Wed Jun 02, 2021 8:35 am

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Last post byMehrab4226
Sun Jun 13, 2021 8:29 pm
Hard Diophantine (maybe)

Last postbyAsif Hossain « Tue May 25, 2021 9:50 pm
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byAsif Hossain »Mon May 24, 2021 11:46 am

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Tue May 25, 2021 9:50 pm
A question concerning multiplicative function

Last postbyMehrab4226 « Tue May 18, 2021 9:21 pm
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byMehrab4226 »Tue May 18, 2021 8:40 pm

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An OLD NT

Last postbyAsif Hossain « Fri May 07, 2021 2:50 pm
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byAsif Hossain »Thu May 06, 2021 10:42 pm

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A Problem from Dustan

Last postbyDustan « Sun May 02, 2021 6:15 pm
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byAsif Hossain »Sun May 02, 2021 2:22 pm

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Last post byDustan
Sun May 02, 2021 6:15 pm
Need to confirm if this is right

Last postbyAsif Hossain « Thu Apr 22, 2021 2:15 pm
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byAsif Hossain »Thu Apr 22, 2021 12:56 pm

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EGMO 2021 P1

Last postbyMehrab4226 « Wed Apr 21, 2021 2:25 pm
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byAsif Hossain »Thu Apr 15, 2021 12:39 pm

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Find all non negative integer (a,b) such that.....

Last postbyAsif Hossain « Thu Apr 15, 2021 10:37 am
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byAourkoPChakraborty »Mon Feb 15, 2021 12:38 am

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NT marathon!!!!!!!

Last postbyMehrab4226 « Fri Apr 09, 2021 9:54 pm
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byDustan »Fri Mar 19, 2021 3:07 pm
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Nice Number theory Problem

Last postbyAsif Hossain « Fri Mar 12, 2021 3:56 pm
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byAsif Hossain »Fri Mar 12, 2021 8:25 am

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Last post byAsif Hossain
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Total Number of digits

Last postbyZafar « Thu Mar 11, 2021 6:51 pm
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bysamiul_samin »Sun Feb 18, 2018 8:54 pm

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Last post byZafar
Thu Mar 11, 2021 6:51 pm
Existence of a prime factor>p

Last postby~Aurn0b~ « Sat Feb 27, 2021 2:51 pm
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byAourkoPChakraborty »Fri Feb 12, 2021 4:59 pm

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Sat Feb 27, 2021 2:51 pm
All eight integers are the same modulo 2005

Last postbyMehrab4226 « Wed Jan 27, 2021 10:28 pm
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byEnthurelxyz »Sun Jan 10, 2021 1:12 pm

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Eratosthenes Sieve

Last postbyMehrab4226 « Sun Dec 27, 2020 6:39 pm
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byAnindya Biswas »Tue Dec 22, 2020 12:00 am

9 Replies

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Sun Dec 27, 2020 6:39 pm
A problem from USAMO 2003

Last postbyMehrab4226 « Tue Dec 22, 2020 12:35 am
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byThephysimatician »Mon Dec 21, 2020 7:39 pm

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Tue Dec 22, 2020 12:35 am
IMO Problem

Last postbyAlmx26 « Fri Sep 11, 2020 2:04 pm

byAlmx26 »Fri Sep 11, 2020 2:04 pm

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Last post byAlmx26
Fri Sep 11, 2020 2:04 pm
I need help.(about gcd and lcm)

Last postbyAlmx26 « Wed Sep 09, 2020 6:32 pm

byAlmx26 »Wed Sep 09, 2020 6:32 pm

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Last post byAlmx26
Wed Sep 09, 2020 6:32 pm
Euler's Criterion

Last postbyRagib Farhat Hasan « Tue Nov 05, 2019 1:01 am
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byjayon_2 »Sun Apr 16, 2017 1:06 pm

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Last post byRagib Farhat Hasan
Tue Nov 05, 2019 1:01 am
Difference Between Divisors

Last postbyAbdullah Al Tanzim « Wed May 15, 2019 2:34 pm
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byAbdullah Al Tanzim »Wed May 15, 2019 2:12 pm

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Last post byAbdullah Al Tanzim
Wed May 15, 2019 2:34 pm
Happy Pi day

Last postbysamiul_samin « Thu Mar 14, 2019 8:48 am
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byPhlembac Adib Hasan »Wed Mar 14, 2012 6:12 pm

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Last post bysamiul_samin
Thu Mar 14, 2019 8:48 am
2018 BDMO NT exam P4

Last postbysamiul_samin « Mon Feb 18, 2019 11:51 pm
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byAnanya Promi »Thu Apr 12, 2018 3:43 pm

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Last post bysamiul_samin
Mon Feb 18, 2019 11:51 pm
Divide years by 5

Last postbysamiul_samin « Wed Jan 23, 2019 4:28 pm
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bysamiul_samin »Fri Jan 18, 2019 6:58 pm

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Wed Jan 23, 2019 4:28 pm

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