# Number Theory Forum

Number Theory Help Forum

1. ### Writing numbers as sum of primes

• Replies: 16
• Views: 2,583
Dec 21st 2009, 12:16 PM
2. ### mathematical operations

• Replies: 4
• Views: 432
Dec 21st 2009, 10:11 AM
3. ### find the missing number

• Replies: 1
• Views: 649
Dec 21st 2009, 05:24 AM
4. ### Congreunce modulo 49

• Replies: 5
• Views: 817
Dec 21st 2009, 04:52 AM

• Replies: 1
• Views: 619
Dec 20th 2009, 09:39 PM
6. ### Immediate Consequences of Fermat's Little Theorem

• Replies: 2
• Views: 837
Dec 20th 2009, 07:12 PM
7. ### Primitive Root problem

• Replies: 0
• Views: 514
Dec 20th 2009, 03:13 PM
8. ### Base 2

• Replies: 1
• Views: 599
Dec 20th 2009, 11:55 AM
9. ### Proof Regarding Polynomials

• Replies: 1
• Views: 333
Dec 20th 2009, 09:46 AM

• Replies: 4
• Views: 574
Dec 20th 2009, 07:42 AM
11. ### Eqaution with 2 variables

• Replies: 2
• Views: 574
Dec 20th 2009, 06:40 AM
12. ### Sums of squares exercise

• Replies: 2
• Views: 605
Dec 19th 2009, 01:15 PM
13. ### Simple Contrapositive Proof

• Replies: 5
• Views: 722
Dec 19th 2009, 05:03 AM
14. ### Primitive roots modulo p, cyclotomic polynomials - Challenge problem!

• Replies: 2
• Views: 1,140
Dec 18th 2009, 12:48 PM
15. ### Zolotarev's lemma - Challenge problem

• Replies: 8
• Views: 1,080
Dec 18th 2009, 12:45 PM
16. ### primes in an interval

• Replies: 5
• Views: 615
Dec 16th 2009, 07:41 PM
17. ### Worst case for prime factorisation

• Replies: 5
• Views: 1,019
Dec 16th 2009, 01:04 AM
18. ### proof with carmichael numbers

• Replies: 3
• Views: 615
Dec 15th 2009, 07:28 PM
19. ### tau(n) proof

• Replies: 2
• Views: 717
Dec 15th 2009, 06:47 PM
20. ### 2^x in a congruence equation

• Replies: 2
• Views: 455
Dec 15th 2009, 05:08 PM
21. ### Rep unit problem

• Replies: 1
• Views: 434
Dec 15th 2009, 11:03 AM
22. ### prove :S

• Replies: 3
• Views: 284
Dec 15th 2009, 10:44 AM
23. ### congruence problem

• Replies: 3
• Views: 450
Dec 14th 2009, 07:53 PM
24. ### Pollard p-1

• Replies: 1
• Views: 577
Dec 14th 2009, 07:09 PM
25. ### Show that if (a,m) = 1 and m has a prime factor p such that (p-1) | Q, then (a^Q-1,m)

• Replies: 1
• Views: 509
Dec 14th 2009, 05:13 PM
26. ### Eulers Theorem problem

• Replies: 1
• Views: 457
Dec 14th 2009, 03:20 PM

• Replies: 1
• Views: 556
Dec 14th 2009, 03:02 PM
28. ### euler function

• Replies: 1
• Views: 421
Dec 14th 2009, 01:45 AM
29. ### Can you help me about GCD.?

• Replies: 3
• Views: 588
Dec 13th 2009, 11:30 PM

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