yup!!!AntiviruShahriar wrote:yup i did'nt think about $5!$......it was my mistake but as $a$ $\equiv$ $a+n$ $(mod n)$, $5!$ can't change the ans.viivviiave wrote:wait
i don't understand. both 5! and 6! are also divisible by 30
Search found 4 matches
- Tue Dec 28, 2010 6:38 pm
- Forum: Divisional Math Olympiad
- Topic: number theory problem
- Replies: 10
- Views: 6643
Re: number theory problem
- Sat Dec 25, 2010 8:15 pm
- Forum: Divisional Math Olympiad
- Topic: need help with study material
- Replies: 3
- Views: 3191
Re: need help with study material
thanks for such a quick reply but i need to know how and when to register
i don't use prothom alo
thanks
i don't use prothom alo
thanks
- Sat Dec 25, 2010 8:08 pm
- Forum: Divisional Math Olympiad
- Topic: number theory problem
- Replies: 10
- Views: 6643
Re: number theory problem
wait
i don't understand. both 5! and 6! are also divisible by 30
i don't understand. both 5! and 6! are also divisible by 30
- Sat Dec 25, 2010 7:35 pm
- Forum: Divisional Math Olympiad
- Topic: need help with study material
- Replies: 3
- Views: 3191
need help with study material
hi i'm from dhaka and i am currently studying in grade 12 in an english medium school. inshallah i'll be trying out for this year olympiad but before that i need to know what to study i know that the bengali medium syllabus is quite different from the one i'm studying so if anyone can let me in on s...