User Charles

37 votes

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Has Stirling’s Formula ever been applied, with interesting consequence, to Wilson’s Theorem?

answered Oct 16, 2010 at 18:46

26 votes

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Fastest algorithm to compute the sum of primes?

answered Nov 21, 2011 at 17:26

21 votes

Odd-bit primes ratio

answered Nov 2, 2010 at 14:48

19 votes

Examples of theorems misapplied to non-mathematical contexts

answered Apr 12, 2011 at 19:32

14 votes

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Factorization when a factor is partially known

answered Mar 9, 2015 at 4:54

13 votes

Testing whether an integer is the sum of two squares

answered Mar 9, 2011 at 19:20

11 votes

Not especially famous, long-open problems which anyone can understand

answered Jun 21, 2012 at 19:15

11 votes

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Bounds on squarefree numbers

answered Jan 18, 2018 at 6:21

11 votes

Who coined the name tensor and why?

answered Sep 18, 2011 at 17:14

11 votes

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Heuristic justification for Goldbach's conjecture

answered Jul 12, 2010 at 18:04

10 votes

Does pi contain 1000 consecutive zeroes (in base 10)?

answered May 21, 2010 at 4:21

10 votes

Is there a two-variable prime-representing polynomial (in the sense of Jones-Sato-Wada-Wiens)?

answered Oct 4, 2011 at 15:21

10 votes

Is there always at least one prime in intervals of this form?

answered Apr 11, 2017 at 20:28

10 votes

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Smallest prime in an arithmetic progression

answered Aug 14, 2014 at 17:48

9 votes

What is the high-concept explanation on why real numbers are useful in number theory?

answered Apr 14, 2011 at 19:38

8 votes

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What is the best known estimate for the place of the prime gap with length 1.609*10^18?

answered Oct 6, 2010 at 0:15

7 votes

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Primes represented by two-variable quadratic polynomials

answered Feb 16, 2011 at 12:30

7 votes

"Strange" prime number"

answered Oct 5, 2011 at 13:40

6 votes

subtracting greatest possible prime

answered Oct 10, 2010 at 16:29

6 votes

Marey's problem: Generating all prime numbers in $[n_1,n_2]$

answered Jul 27, 2010 at 0:35

6 votes

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Status of Beal, Granville, Tijdeman-Zagier Conjecture

answered Jul 12, 2010 at 18:26

6 votes

A number encoding all primes

answered May 12, 2010 at 2:58

6 votes

Question on coefficient of $\exp(H_n).\log(H_n)$ in Lagarias equivalence of RH

answered Aug 12, 2021 at 13:32

6 votes

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Primes between $x$ and $x+x^\theta$

answered Jan 19, 2022 at 5:38

6 votes

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Efficiently finding the largest divisor of N less than sqrt(N)

answered Mar 18, 2022 at 3:07

5 votes

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"Squeezing" the primes?

answered Sep 1, 2023 at 17:39

5 votes

At what point would an elementary generalization of Bertrand's Postulate be interesting?

answered Apr 11, 2013 at 14:31

5 votes

Constructing prime numbers

answered Sep 16, 2010 at 3:14

5 votes

A question about primes as an additive basis

answered Jan 19, 2011 at 14:35

5 votes

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The "universal" diophantine equation

answered Nov 20, 2011 at 15:18

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61 Answers

Has Stirling’s Formula ever been applied, with interesting consequence, to Wilson’s Theorem?

Fastest algorithm to compute the sum of primes?

Odd-bit primes ratio

Examples of theorems misapplied to non-mathematical contexts

Factorization when a factor is partially known

Testing whether an integer is the sum of two squares

Not especially famous, long-open problems which anyone can understand

Bounds on squarefree numbers

Who coined the name tensor and why?

Heuristic justification for Goldbach's conjecture

Does pi contain 1000 consecutive zeroes (in base 10)?

Is there a two-variable prime-representing polynomial (in the sense of Jones-Sato-Wada-Wiens)?

Is there always at least one prime in intervals of this form?

Smallest prime in an arithmetic progression

What is the high-concept explanation on why real numbers are useful in number theory?

What is the best known estimate for the place of the prime gap with length 1.609*10^18?

Primes represented by two-variable quadratic polynomials

"Strange" prime number"

subtracting greatest possible prime

Marey's problem: Generating all prime numbers in $[n_1,n_2]$

Status of Beal, Granville, Tijdeman-Zagier Conjecture

A number encoding all primes

Question on coefficient of $\exp(H_n).\log(H_n)$ in Lagarias equivalence of RH

Primes between $x$ and $x+x^\theta$

Efficiently finding the largest divisor of N less than sqrt(N)

"Squeezing" the primes?

At what point would an elementary generalization of Bertrand's Postulate be interesting?

Constructing prime numbers

A question about primes as an additive basis

The "universal" diophantine equation