# Number Theory

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

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2. ### number theory and Riemann's problem solved.

Grigorii Anfimov
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55
Grigorii Anfimov
Jul 15, 2024

Dr_Prime
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156
Dr_Prime
Jun 22, 2024

syndixxx
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314
syndixxx
Jun 19, 2024

syndixxx
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1
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198
RobertSmart
May 24, 2024
6. ### Sub-perfect Numbers

Murray Cantor
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7
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363
Logic
May 9, 2024

Thethinker
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419
RobertSmart
Apr 16, 2024

Thethinker
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880
conway
Apr 15, 2024

eski
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3
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511
ROBERTMILLS
Mar 29, 2024

Logic
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468
conway
Mar 19, 2024

ddinunno
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623
conway
Mar 13, 2024

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532
Logic
Mar 11, 2024

syndixxx
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350
conway
Dec 14, 2023

nemo
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1
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300
conway
Dec 7, 2023
15. ### New formula for the Riemann Hypothesis

John.Anderson
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378
John.Anderson
Sep 27, 2023

Seff
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1
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498
HallsofIvy
Sep 5, 2023

Seff
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500
HallsofIvy
Aug 5, 2023

Seff
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409

Seff
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339

Seff
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299

genabutov
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629
genabutov
Apr 7, 2023

Martynov_M
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574
Martynov_M
Apr 4, 2023

in2infinity
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400
ddinunno
Mar 31, 2023

ddinunno
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3
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510
ddinunno
Mar 31, 2023

fluo2005
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935
ddinunno
Mar 5, 2023

ddinunno
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667
ddinunno
Mar 4, 2023

jonesk79
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jonesk79
Oct 3, 2022
28. ### Is there some restrictions on values of p,q,d,e etc in RSA algorithm while trying to encrypt English

shivajikobardan
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514
shivajikobardan
Aug 28, 2022
29. ### Multiplicative orders modulo powers

Dimiter Skordev
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367
Dimiter Skordev
Aug 18, 2022
30. ### Just posted this on the intro site, but think I should have posted here. Oops

Ian M
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355
BobLeMagnifik
Jun 26, 2022
31. ### Not a Mersenne prime, but what is it?

paulejking
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1
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412
BobLeMagnifik
Jun 26, 2022

ter
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1
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391
33. ### Birch and Swinnerton-Dyer Conjecture

DmitriMartila777
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307
DmitriMartila777
Apr 23, 2022

PixelEight
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633
Country Boy
Jan 16, 2022
35. ### About the "Hoppa's numbers" (according to Petrov and not only...)

olgaSamara
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595
perotinus1983
Dec 19, 2021
36. ### Variations on Ulam

perotinus1983
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514
perotinus1983
Dec 18, 2021

olgaSamara
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726
olgaSamara
Aug 24, 2021

MDV
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1,005
paulejking
Jul 26, 2021