# Number Theory Forum

Number Theory Help Forum

1. ### Prove that it is composite number

• Replies: 2
• Views: 492
Dec 2nd 2012, 09:46 AM
2. ### p,q are prime numbs and a is positive integer

• Replies: 1
• Views: 338
Dec 2nd 2012, 04:26 AM
3. ### Showing something is divisible

• Replies: 4
• Views: 549
Nov 30th 2012, 02:04 PM
4. ### Carmichael numbers of the form (6n+1)(12n+1)(18n+1)

• Replies: 0
• Views: 421
Nov 27th 2012, 05:31 PM

• Replies: 3
• Views: 405
Nov 27th 2012, 04:25 PM
6. ### multiplicatively periodic

• Replies: 1
• Views: 387
Nov 27th 2012, 03:50 PM

• Replies: 2
• Views: 571
Nov 27th 2012, 01:32 PM

• Replies: 2
• Views: 1,910
Nov 26th 2012, 07:39 PM
9. ### Take a look at this problem. The Quadratic Reciprocity

• Replies: 2
• Views: 505
Nov 26th 2012, 06:16 PM
10. ### modulo

• Replies: 2
• Views: 412
Nov 26th 2012, 05:11 PM
11. ### replacement for multiplication?

• Replies: 0
• Views: 365
Nov 26th 2012, 09:49 AM
12. ### Euclid Numbers

• Replies: 2
• Views: 382
Nov 26th 2012, 07:28 AM
13. ### How to determin if a large exponent is divisible by 9

• Replies: 1
• Views: 764
Nov 26th 2012, 02:07 AM
14. ### how to contribute it to some book like number-theory magazine ?

• Replies: 1
• Views: 366
Nov 25th 2012, 08:59 PM
15. ### Reference or explanation of zeta mellin transform in critical strip

• Replies: 1
• Views: 449
Nov 24th 2012, 05:12 PM
16. ### finding smallest multiple of N satisfying condtion

• Replies: 0
• Views: 466
Nov 24th 2012, 03:36 AM
17. ### Can all numbers be represented by (a^n) plus or minus (b^m) {where n and m are >1}

• Replies: 1
• Views: 597
Nov 21st 2012, 06:20 PM
18. ### f(x+y)=f(x)*f(y), f(1)=q. find the followings.

• Replies: 1
• Views: 607
Nov 20th 2012, 08:41 PM
19. ### prime numbers

• Replies: 2
• Views: 606
Nov 19th 2012, 10:12 AM
20. ### Chinese remainder theorem

• Replies: 1
• Views: 363
Nov 18th 2012, 06:44 PM
21. ### What is the units digit of the following number (sum of powers)

• Replies: 1
• Views: 436
Nov 17th 2012, 12:22 PM
22. ### Number theory problem!!!

• Replies: 0
• Views: 452
Nov 15th 2012, 09:34 PM
23. ### What precentage of the set of integers have no prime factor larger than X?

• Replies: 0
• Views: 374
Nov 14th 2012, 12:09 PM
24. ### A basic number theory question,I seriously need it solved asap.

• Replies: 1
• Views: 1,029
Nov 11th 2012, 01:30 PM
25. ### If a+√ b=c+√ d, prove that a=c and b=d.

• Replies: 11
• Views: 2,009
Nov 11th 2012, 12:59 PM

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