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Forum: Number Theory

Classical Number Theory, Algebraic and Analytic Number Theory, Number Theoretic Cryptography

  1. Normal Thread Normal Threads

  2. Modulo multiplication

    Started by mathmari, December 6th, 2016 17:25
    $xin, definition, mathbbn_0$, wondering, ymod
    • Replies: 3
    • Views: 166
    December 26th, 2016, 09:27 Go to last post
  3. A Vedic Math method

    Started by RLBrown, December 17th, 2016 22:27
    • Replies: 2
    • Views: 128
    December 18th, 2016, 14:34 Go to last post
  4. [SOLVED] 4-adic expansion

    Started by mathmari, December 9th, 2016 08:00
    • Replies: 2
    • Views: 148
    December 18th, 2016, 00:07 Go to last post
  5. Factorisation Related Question

    Started by PeterJ, November 16th, 2016 20:09
    calculation, digits, factorisation, number, question
    • Replies: 3
    • Views: 147
    November 19th, 2016, 09:54 Go to last post
  6. Find pairs of integers (m,n):

    Started by lfdahl, November 7th, 2016 15:25
    empty, find, integers, pairs, solutions
    • Replies: 6
    • Views: 263
    November 9th, 2016, 08:23 Go to last post
  7. Number Theory for Electronic Signal Frequency Synthesis

    Started by Garan, October 30th, 2016 13:47
    4000, electronic, frequency, number, problem
    • Replies: 5
    • Views: 245
    October 31st, 2016, 14:10 Go to last post
    • Replies: 0
    • Views: 137
    October 23rd, 2016, 04:12 Go to last post
  8. Prove congruence for powers of 2

    Started by Alexmahone, October 2nd, 2016 13:36
    $a^n/4equiv, $phin=n/2$, 1pmodn$, eulers, prove
    • Replies: 3
    • Views: 192
    October 3rd, 2016, 16:20 Go to last post
  9. Is this Calculation Possible?

    Started by PeterJ, September 5th, 2016 09:48
    calculate, number, products, remainder, sieve
    • Replies: 6
    • Views: 405
    September 24th, 2016, 04:32 Go to last post
  10. Prove prime test conjecture.

    Started by RLBrown, July 24th, 2016 02:34
    beginarrayc, endarray, fracn+12, n-1, prove
    • Replies: 1
    • Views: 354
    July 24th, 2016, 09:10 Go to last post
  11. Problem of Calculating Probabilities

    Started by PeterJ, July 22nd, 2016 14:09
    calculate, chance, easy, probability, product
    • Replies: 2
    • Views: 289
    July 23rd, 2016, 09:47 Go to last post
  12. Seeking Help with a Calculation

    Started by PeterJ, July 7th, 2016 09:08
    figure, increases, primes, range, sqrtp
    • Replies: 7
    • Views: 488
    July 15th, 2016, 07:31 Go to last post
  13. Result of Euclidean division

    Started by evinda, May 15th, 2016 05:00
    2 Pages
    1 2
    • Replies: 14
    • Views: 996
    May 16th, 2016, 06:45 Go to last post
  14. Sum of divisors of prime

    Started by mathworker, May 7th, 2016 09:32
    divisors, find, numbers, problem, sum
    • Replies: 0
    • Views: 351
    May 7th, 2016, 09:32 Go to last post
  15. Brute force calculation of P(200)

    Started by Annoying Twit, April 10th, 2016 17:04
    int, long, macmahon, number, target
    • Replies: 2
    • Views: 615
    April 30th, 2016, 03:19 Go to last post
  16. Prove this function changes parity.

    Started by e2theipi2026, April 29th, 2016 12:23
    composite, function, number, parity, prove
    • Replies: 0
    • Views: 274
    April 29th, 2016, 12:23 Go to last post
  17. Does this imply infinite twins?

    Started by e2theipi2026, April 28th, 2016 23:53
    counting, function, prime, p_n, twin
    • Replies: 2
    • Views: 384
    April 29th, 2016, 11:54 Go to last post
  18. Describe the units of Z[sqrt 2]

    Started by Peter, October 11th, 2014 03:08
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,525
    April 4th, 2016, 10:46 Go to last post
  19. Hard remainder problem

    Started by Guest, March 15th, 2016 04:21
    $5^2009^1492$, find, hard, problem, remainder
    • Replies: 1
    • Views: 441
    March 15th, 2016, 04:58 Go to last post
  20. Proving an absolute value inequality

    Started by Cbarker1, February 9th, 2016 18:38
    $left|, absolute, case, right|=, xge
    • Replies: 2
    • Views: 615
    February 14th, 2016, 14:55 Go to last post
  21. Linear diophantine equations

    Started by Guest, January 29th, 2016 14:11
    decide, diophantine, equations, false, true
    • Replies: 4
    • Views: 587
    January 30th, 2016, 02:35 Go to last post
  22. Greatest common divisor

    Started by Guest, January 29th, 2016 14:23
    $n$, common, counterexample, false, integer
    • Replies: 5
    • Views: 635
    January 29th, 2016, 17:55 Go to last post
  23. [SOLVED] Alll Positive Integers proof by contraposition

    Started by tmt, November 30th, 2015 01:17
    $s$, book, inequality, integers, sqrtn$
    • Replies: 1
    • Views: 698
    November 30th, 2015, 09:50 Go to last post
  24. Prime numbers proof by contradiction

    Started by tmt, November 30th, 2015 00:47
    $a^2, b^2, contradiction, numbers, prime
    • Replies: 1
    • Views: 543
    November 30th, 2015, 08:21 Go to last post
  25. [SOLVED] Proof by contraposition for dividing integers

    Started by tmt, November 29th, 2015 23:12
    $bc, akc, contraposition, integers, nmid
    • Replies: 0
    • Views: 390
    November 29th, 2015, 23:12 Go to last post
  26. Sufficient Proof

    Started by tmt, November 29th, 2015 17:48
    n^2, prove, quotient, remainder, theorem
    • Replies: 1
    • Views: 553
    November 29th, 2015, 21:17 Go to last post
  27. [SOLVED] Contrapositive proof

    Started by tmt, November 29th, 2015 20:30
    $m$, $n$, contrapositive, odd, proof
    • Replies: 1
    • Views: 471
    November 29th, 2015, 20:42 Go to last post
  28. Dividing problem

    Started by tmt, November 28th, 2015 18:01
    $a$, integer, proceed, show, unsure
    • Replies: 1
    • Views: 566
    November 28th, 2015, 22:50 Go to last post
  29. [SOLVED] All solutions to equation problem

    Started by tmt, November 24th, 2015 21:11
    $56, equation, find, proceed, solutions
    • Replies: 1
    • Views: 573
    November 24th, 2015, 22:15 Go to last post

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