# Number Theory Forum

Number Theory Help Forum

1. ### Can someone explain why (x+y)^(-n) is a infinite rather than finite series?

• Replies: 2
• Views: 544
May 6th 2012, 11:10 PM
2. ### splitting a cube into 4 parts

• Replies: 2
• Views: 1,379
May 6th 2012, 01:11 AM
3. ### Problems proving a summation

• Replies: 1
• Views: 524
May 5th 2012, 03:04 PM
4. ### Decimal - Is it rational or irrational?

• Replies: 7
• Views: 2,187
May 3rd 2012, 05:28 AM
5. ### Contest Question

• Replies: 4
• Views: 949
May 2nd 2012, 05:08 PM
6. ### Suppose gcd(m,n)=1, show that m^{phi(n)} + n^{phi(m)} = 1 (mod mn)

• Replies: 11
• Views: 3,990
May 2nd 2012, 11:48 AM
7. ### surjective function

• Replies: 3
• Views: 717
May 2nd 2012, 10:52 AM
8. ### complex numbers and sets

• Replies: 4
• Views: 697
May 2nd 2012, 07:10 AM
9. ### complex numbers eulers formula

• Replies: 9
• Views: 1,719
May 2nd 2012, 07:01 AM
10. ### 3 squares in AP

• Replies: 0
• Views: 663
May 2nd 2012, 03:54 AM
11. ### Up arrow notation: concept check

• Replies: 0
• Views: 559
May 1st 2012, 09:41 PM
12. ### congruent

• Replies: 1
• Views: 539
May 1st 2012, 08:00 AM
13. ### Number Theory/Complex Numbers

• Replies: 1
• Views: 851
Apr 30th 2012, 10:09 PM
14. ### 3 squares

• Replies: 2
• Views: 676
Apr 30th 2012, 04:02 PM
15. ### coprime

• Replies: 2
• Views: 599
Apr 29th 2012, 09:18 AM
16. ### homogeneous integer equation

• Replies: 1
• Views: 474
Apr 29th 2012, 05:36 AM
17. ### finding first n semi-prime integers

• Replies: 2
• Views: 1,039
Apr 27th 2012, 06:51 PM
18. ### GCD Proof

• Replies: 1
• Views: 446
Apr 26th 2012, 11:56 PM
19. ### Smallest number with given number of factors

• Replies: 1
• Views: 5,702
Apr 26th 2012, 12:05 PM
20. ### Find the number of primitive roots in Z_101, Z_12

• Replies: 2
• Views: 934
Apr 26th 2012, 06:49 AM
21. ### Multiplicative function

• Replies: 0
• Views: 517
Apr 25th 2012, 08:02 PM
22. ### integer solutions for a straight line

• Replies: 2
• Views: 490
Apr 25th 2012, 04:27 AM
23. ### Convergent series in the p-adic completion of Q

• Replies: 0
• Views: 337
Apr 25th 2012, 03:42 AM
24. ### generator of Z*p

• Replies: 2
• Views: 1,063
Apr 24th 2012, 11:44 PM
25. ### find a integer solution of eqution x^3+y^5=z^2

• Replies: 1
• Views: 503
Apr 24th 2012, 09:51 AM
26. ### 7a^2+b^2=2^N

• Replies: 8
• Views: 935
Apr 24th 2012, 09:32 AM
27. ### Complex Numbers

• Replies: 2
• Views: 353
Apr 23rd 2012, 04:15 PM
28. ### Continued fraction for sqrt(e)

• Replies: 1
• Views: 536
Apr 23rd 2012, 04:04 PM
29. ### pairwise disjoint sets of {n^2+an+b | n in Z} with a,b in Z

• Replies: 1
• Views: 674
Apr 23rd 2012, 09:10 AM
30. ### Show that 16^560 = 1 (mod 561) even though 561 is not a prime

• Replies: 4
• Views: 1,618
Apr 23rd 2012, 04:58 AM

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