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### Re: Yet divisibility...

Please a solution...
Sat Nov 11, 2017 4:08 pm

Forum: Number Theory
Topic: Yet divisibility...
Replies: 3
Views: 331

### Re: Yet divisibility...

Someone pleasee.
Sat Oct 14, 2017 10:48 pm

Forum: Number Theory
Topic: Yet divisibility...
Replies: 3
Views: 331

### Re: IMO \$2017\$ P\$1\$

Beautifull solution ahmedittihad!!
Mon Oct 02, 2017 3:00 pm

Forum: International Mathematical Olympiad (IMO)
Topic: IMO \$2017\$ P\$1\$
Replies: 4
Views: 477

### Re: IMO \$2017\$ P\$1\$

Please someone post a solution...
Fri Sep 15, 2017 3:11 am

Forum: International Mathematical Olympiad (IMO)
Topic: IMO \$2017\$ P\$1\$
Replies: 4
Views: 477

### Re: Yet divisibility...

Please a solution...
Wed Sep 06, 2017 6:04 pm

Forum: Number Theory
Topic: Yet divisibility...
Replies: 3
Views: 331

### Re: a+b+c>=1/a+1/b+1/c

Someone?
Wed Sep 06, 2017 6:02 pm

Forum: Algebra
Topic: a+b+c>=1/a+1/b+1/c
Replies: 1
Views: 388

### Re: Sequence and divisibility

Thanks tanmoy.
Wed Sep 06, 2017 5:52 pm

Forum: Algebra
Topic: Sequence and divisibility
Replies: 2
Views: 284

### Sequence and divisibility

Let \$ n\$ be a positive integer and let \$ a_1,a_2,a_3,\ldots,a_k\$ \$ ( k\ge 2)\$ be distinct integers in the set \$ { 1,2,\ldots,n}\$ such that \$ n\$ divides \$ a_i(a_{i + 1} - 1)\$ for \$ i = 1,2,\ldots,k - 1\$. Prove that \$ n\$ does not divide \$ a_k(a_1 - 1).\$
Thu Aug 24, 2017 10:27 pm

Forum: Algebra
Topic: Sequence and divisibility
Replies: 2
Views: 284

### Re: Double inequality

Yes sMMamum, it was obviously an error.
Very good and clear solution.
Thanks!!
Thu Aug 24, 2017 10:22 pm

Forum: Algebra
Topic: Double inequality
Replies: 3
Views: 247

### Re: Double inequality

Someone?
Sat Aug 19, 2017 11:10 pm

Forum: Algebra
Topic: Double inequality
Replies: 3
Views: 247
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