Number Theory

Fermat's theorem, prime numbers, algebraic number theory, Euler's theorem, congruences, modulo.

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  1. Seff

    Working on a theory of countable cardinals

    Seff, May 7, 2023
    Replies:
    3
    Views:
    346
    Seff
    May 8, 2023
  2. fluo2005

    Where are all the prime numbers hidden?

    fluo2005, Feb 25, 2021
    Replies:
    12
    Views:
    869
    ddinunno
    Mar 5, 2023
  3. perotinus1983

    Variations on Ulam

    perotinus1983, Dec 18, 2021
    Replies:
    4
    Views:
    461
    perotinus1983
    Dec 18, 2021
  4. Seff

    The flaw in Cantor's Diagonalization Argument

    Seff, May 8, 2023
    Replies:
    6
    Views:
    436
    HallsofIvy
    Aug 5, 2023
  5. Martynov_M

    The Collatz conjecture

    Martynov_M, Apr 4, 2023
    Replies:
    0
    Views:
    497
    Martynov_M
    Apr 4, 2023
  6. Murray Cantor

    Sub-perfect Numbers

    Murray Cantor, Jan 15, 2024
    Replies:
    4
    Views:
    227
    Phrzby Phil
    Jan 23, 2024
  7. Thethinker

    Seeking Efficient Prime Identification Methods for Constrained Numerical Ranges

    Thethinker, Apr 14, 2024
    Replies:
    2
    Views:
    116
    RobertSmart
    Apr 16, 2024
  8. Seff

    Proof of Countable Reals

    Seff, May 6, 2023
    Replies:
    1
    Views:
    281
    Seff
    May 8, 2023
  9. Seff

    Proof of countable powersets (bijection)

    Seff, May 6, 2023
    Replies:
    0
    Views:
    244
    Seff
    May 6, 2023
  10. paulejking

    Not a Mersenne prime, but what is it?

    paulejking, Jul 26, 2021
    Replies:
    1
    Views:
    359
    BobLeMagnifik
    Jun 26, 2022
  11. John.Anderson

    New formula for the Riemann Hypothesis

    John.Anderson, Sep 27, 2023
    Replies:
    0
    Views:
    302
    John.Anderson
    Sep 27, 2023
  12. Dimiter Skordev

    Multiplicative orders modulo powers

    Dimiter Skordev, Aug 16, 2022
    Replies:
    1
    Views:
    306
    Dimiter Skordev
    Aug 18, 2022
  13. Logic

    Modular Division Algorithm

    Logic, Aug 25, 2023
    Replies:
    5
    Views:
    379
    conway
    Mar 19, 2024
  14. eski

    Meum -the most mysterious irrational number?

    eski, Aug 17, 2023
    Replies:
    3
    Views:
    430
    ROBERTMILLS
    Mar 29, 2024
  15. Ian M

    Just posted this on the intro site, but think I should have posted here. Oops

    Ian M, Mar 13, 2022
    Replies:
    1
    Views:
    305
    BobLeMagnifik
    Jun 26, 2022
  16. in2infinity

    Is zero a cardinal number?

    in2infinity, Apr 20, 2022
    Replies:
    2
    Views:
    341
    ddinunno
    Mar 31, 2023
  17. shivajikobardan

    Is there some restrictions on values of p,q,d,e etc in RSA algorithm while trying to encrypt English

    shivajikobardan, Aug 28, 2022
    Replies:
    0
    Views:
    451
    shivajikobardan
    Aug 28, 2022
  18. PixelEight

    Is there any truth to this?

    PixelEight, Apr 18, 2021
    Replies:
    3
    Views:
    587
    Country Boy
    Jan 16, 2022
  19. syndixxx

    Is Petrov’s “metaremultion” finite?

    syndixxx, Dec 13, 2023
    Replies:
    6
    Views:
    231
    conway
    Dec 14, 2023
  20. ter

    Is Fermat's "Last Theorem" really Fermat's theorem?

    ter, May 15, 2022
    Replies:
    1
    Views:
    337
    ter
    May 15, 2022
  21. Thethinker

    Innovating Primes: How the Prime Heart Theorem Could Change Everything

    Thethinker, Apr 12, 2024
    Replies:
    3
    Views:
    103
    conway
    Apr 15, 2024
  22. larsSwe

    Have I found a new perfect number ? 162496

    larsSwe, Mar 11, 2024
    Replies:
    9
    Views:
    434
    Logic
    Mar 11, 2024
  23. ddinunno

    Goldbach's Conjecture - proposed proof

    ddinunno, Mar 1, 2023
    Replies:
    1
    Views:
    590
    ddinunno
    Mar 4, 2023
  24. nemo

    Fermat's last theorem my thoughts

    nemo, Nov 6, 2023
    Replies:
    1
    Views:
    241
    conway
    Dec 7, 2023
  25. genabutov

    Ellipses and hyperbolas of decompositions of even numbers into pairs of prime numbers.

    genabutov, Apr 7, 2023
    Replies:
    0
    Views:
    572
    genabutov
    Apr 7, 2023
  26. jonesk79

    Doubling theory and vortex math

    jonesk79, Oct 3, 2022
    Replies:
    0
    Views:
    796
    jonesk79
    Oct 3, 2022
  27. ddinunno

    Direct Proof of Goldbach's Conjecture

    ddinunno, Mar 6, 2024
    Replies:
    13
    Views:
    477
    conway
    Mar 13, 2024
  28. ddinunno

    Corrected Proof of Goldbach's Conjecture

    ddinunno, Mar 29, 2023
    Replies:
    3
    Views:
    446
    ddinunno
    Mar 31, 2023
  29. DmitriMartila777

    Birch and Swinnerton-Dyer Conjecture

    DmitriMartila777, Apr 23, 2022
    Replies:
    0
    Views:
    253
    DmitriMartila777
    Apr 23, 2022
  30. MDV

    Binets formula (Fibonacci numbers) - eliminating root(5)

    MDV, Jan 18, 2020
    Replies:
    1
    Views:
    948
    paulejking
    Jul 26, 2021
  31. olgaSamara

    Are there "Petrov primes" for a > 5000 ?

    olgaSamara, Aug 19, 2021
    Replies:
    13
    Views:
    669
    olgaSamara
    Aug 24, 2021
  32. olgaSamara

    About the "Hoppa's numbers" (according to Petrov and not only...)

    olgaSamara, Aug 24, 2021
    Replies:
    2
    Views:
    539
    perotinus1983
    Dec 19, 2021
  33. Seff

    A very simple bijection between reals and naturals

    Seff, May 7, 2023
    Replies:
    1
    Views:
    421
    HallsofIvy
    Sep 5, 2023
Showing threads 1 to 33 of 33

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