Search found 158 matches
- Sun Dec 19, 2010 11:22 pm
- Forum: Higher Secondary Level
- Topic: Find the Number of PrimeNumbers
- Replies: 21
- Views: 11990
Re: Find the Number of PrimeNumbers
@Anti..interfere korlam..don't mind .52 theke 71..
- Sun Dec 19, 2010 11:17 pm
- Forum: Higher Secondary Level
- Topic: Find the Number of PrimeNumbers
- Replies: 21
- Views: 11990
Re: Find the Number of PrimeNumbers
@Anti ..52 theke 71.
- Sun Dec 19, 2010 11:14 pm
- Forum: Higher Secondary Level
- Topic: Find the Number of PrimeNumbers
- Replies: 21
- Views: 11990
Re: Find the Number of PrimeNumbers
@Everybody...Ami nije solution{akhono solution ta hoiche kina don't know} ta korchi easy akta way te... Ques. e bola ache positive intigergulo getter than 50..tai prime number gulo of course odd..20 ta positive integer er modde 10 ta number odd...Again por por 3 ta odd number er modde at least 1 ta ...
- Sun Dec 19, 2010 9:43 am
- Forum: Higher Secondary Level
- Topic: Sum of integers divide sum of integer powers
- Replies: 3
- Views: 3484
Re: Sum of integers divide sum of integer powers
I am posting a very easy solution....it can't be accepted by all....
we know that if k is odd then ...
a^k + b^k/a + b
so why we can't say that
a^k + b^k + ............. +n^k/a + b +.............+n [a,b belong to N and k is an odd]
we know that if k is odd then ...
a^k + b^k/a + b
so why we can't say that
a^k + b^k + ............. +n^k/a + b +.............+n [a,b belong to N and k is an odd]
- Sun Dec 19, 2010 9:25 am
- Forum: Higher Secondary Level
- Topic: Find the Number of PrimeNumbers
- Replies: 21
- Views: 11990
Re: Find the Number of PrimeNumbers
The ans should be 3 if there is no twin prime.
- Fri Dec 17, 2010 10:03 pm
- Forum: Number Theory
- Topic: Divisor Function!
- Replies: 8
- Views: 5690
Re: Divisor Function!
I am also interested........
- Fri Dec 17, 2010 9:11 pm
- Forum: Divisional Math Olympiad
- Topic: Problems on Number Theory and Alzebra (frm BdMO)
- Replies: 14
- Views: 9292
Re: Problems on Number Theory and Alzebra (frm BdMO)
Prob 2 er ans to 2.
- Fri Dec 17, 2010 9:01 pm
- Forum: Divisional Math Olympiad
- Topic: Find all the digits
- Replies: 8
- Views: 5539
Re: Find all the digits
I think there is a mistake in the 3rd line..100-999.........(999-100+1)*3=900*3.