You need to know the theorem that,
If n is any number such that
n=p^{a}p'^{b}........
Where p,p'.......
Then
the number of factors will be
(a+1)(b+1).....
And thats the number of divisor tooo;)
Search found 244 matches
- Wed Jun 15, 2011 6:09 pm
- Forum: Higher Secondary Level
- Topic: Plz someone help me to solve this problem.
- Replies: 10
- Views: 7912
- Sun Jun 12, 2011 5:28 pm
- Forum: National Math Camp
- Topic: Problems of the day (Day 1)
- Replies: 9
- Views: 6325
Re: Problems of the day (Day 1)
Moon Bhaia , Ans Ta Hoise Na.????
- Sun Jun 12, 2011 5:27 pm
- Forum: National Math Camp
- Topic: Problems of the day (Day 1)
- Replies: 9
- Views: 6325
Re: Problems of the day (Day 1)
Prob.2
(a,b)=(1,1)
Proof Amar Cache Ache But Likhte Eccha Korche na
(a,b)=(1,1)
Proof Amar Cache Ache But Likhte Eccha Korche na
- Sat May 07, 2011 12:48 pm
- Forum: Secondary Level
- Topic: 7 divide $n^7-n$
- Replies: 6
- Views: 4418
Re: 7 divide $n^7-n$
n^6=1 mod 7
=> n^7/n= 1 mod 7
=> n^7-n=0 mod 7
=> n^7/n= 1 mod 7
=> n^7-n=0 mod 7