# Number Theory Forum

Number Theory Help Forum

1. ### The fastest way to test primality ?

• Replies: 4
• Views: 834
Dec 9th 2011, 09:00 AM
2. ### Divisibility problem

• Replies: 2
• Views: 641
Dec 8th 2011, 06:24 PM
3. ### Existence of Primitive Roots

• Replies: 1
• Views: 741
Dec 8th 2011, 06:13 PM
4. ### Question about best rational approximations.

• Replies: 0
• Views: 310
Dec 8th 2011, 08:35 AM
5. ### Analyzing an Induction Proof

• Replies: 2
• Views: 828
Dec 7th 2011, 07:40 PM
6. ### Induction Trig Proof

• Replies: 1
• Views: 875
Dec 7th 2011, 04:17 PM
7. ### simple conjugate question

• Replies: 1
• Views: 553
Dec 7th 2011, 01:28 PM
8. ### GCD of Polynomials

• Replies: 5
• Views: 756
Dec 7th 2011, 11:40 AM
9. ### Set of values of n for which >10000

• Replies: 5
• Views: 669
Dec 6th 2011, 07:06 PM
10. ### Is this relation recursive?

• Replies: 3
• Views: 418
Dec 6th 2011, 09:25 AM
11. ### Fibonacci sequence identity

• Replies: 1
• Views: 486
Dec 3rd 2011, 12:35 PM
12. ### What is the name of this sequence/"function"?

• Replies: 0
• Views: 331
Dec 3rd 2011, 10:33 AM
13. ### How to solve a^x mod b = c?

• Replies: 1
• Views: 826
Dec 3rd 2011, 04:34 AM
14. ### help with modular arithmetic please

• Replies: 2
• Views: 497
Dec 2nd 2011, 02:50 AM
15. ### Coprimes and modulus problem

• Replies: 8
• Views: 581
Dec 1st 2011, 12:34 PM
16. ### euler fhi function and power of a prime

• Replies: 2
• Views: 516
Dec 1st 2011, 12:09 PM
17. ### Are numbers : (-1)^(i) , 1^(-i) , 1^(i) transcendental numbers?

• Replies: 7
• Views: 672
Nov 30th 2011, 11:53 PM
18. ### This function is the so called set of divisors function...

• Replies: 1
• Views: 594
Nov 30th 2011, 09:16 PM
19. ### [SOLVED] Wilson's Theorem

• Replies: 6
• Views: 1,148
Nov 30th 2011, 10:26 AM
20. ### [SOLVED] a!b! = a! + b! + c!

• Replies: 6
• Views: 549
Nov 30th 2011, 09:20 AM
21. ### Find all positive integers n such that euler's phi equals 6

• Replies: 4
• Views: 4,555
Nov 28th 2011, 11:01 PM
22. ### how to proof gcd(n,phi(n))=1 if b^b=a (mod n)

• Replies: 0
• Views: 484
Nov 27th 2011, 07:31 AM
23. ### proof of fermat's divisibilty examination problem?

• Replies: 0
• Views: 494
Nov 27th 2011, 05:22 AM
24. ### proof of this problem : if q|((b^m)-1) and (m|t) then q|((b^t)-1)

• Replies: 1
• Views: 483
Nov 26th 2011, 09:25 PM
25. ### help to proof : if a|b then phi(a) | phi(b)

• Replies: 4
• Views: 1,099
Nov 26th 2011, 04:59 PM
26. ### Prove if n is even and a > 0 then a + 1 is not a factor of a^n +1

• Replies: 15
• Views: 1,589
Nov 26th 2011, 01:40 PM

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