Question

What is the correct definition of a Cunningham chain of length $n$?

score 70 · Answer 1 · 2026-03-30 01:30:58

70

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What is the correct definition of a Cunningham chain of length $n$?

Published on 30 Mar 2026 - 1:30

score 56 · Answer 2 · 2026-04-01 14:22:02

56

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Primes that give different residue modulo $6$

Published on 01 Apr 2026 - 14:22

score 368 · Answer 3 · 2026-03-27 12:02:51

368

Views

How many prime numbers contain strictly increasing digits?

Published on 27 Mar 2026 - 12:02

score 279 · Answer 4 · 2026-03-15 23:52:11

279

Views

When will a prime element of $\Bbb{Z}[(\sqrt{5}-1)/2]$ have field norm equal to a rational prime?

Published on 15 Mar 2026 - 23:52

score 163 · Answer 5 · 2019-02-10 23:54:33

163

Views

Can $x^n-(x-1)^n$ be Prime if $n$ is Not Prime?

Published on 10 Feb 2019 - 23:54

score 103 · Answer 6 · 2019-02-11 12:58:30

103

Views

What do mathematicians mean when they say "we don't know how to predict which numbers are primes"?

Published on 11 Feb 2019 - 12:58

score 186 · Answer 7 · 2019-02-11 15:10:04

186

Views

Elementary Proof of Erdos for prime number theorem.

Published on 11 Feb 2019 - 15:10

score 97 · Answer 8 · 2019-02-12 13:37:07

97

Views

Proof Explanation - Odd prime division

Published on 12 Feb 2019 - 13:37

score 67 · Answer 9 · 2019-02-12 21:31:35

67

Views

How to calculate divisibility with 3 of a ratio?

Published on 12 Feb 2019 - 21:31

score 127 · Answer 10 · 2026-03-25 07:47:49

127

Views

Error in counting the number of relatively coprime integer pairs less than N

Published on 25 Mar 2026 - 7:47

score 255 · Answer 11 · 2026-03-22 07:11:57

255

Views

Is $10^{2^{21}}+1$ known to be composite?

Published on 22 Mar 2026 - 7:11

score 113 · Answer 12 · 2019-02-14 18:56:08

113

Views

Two Subsets of Squares of Reciprocals of Primes with Equal Sums

Published on 14 Feb 2019 - 18:56

score 308 · Answer 13 · 2026-03-27 20:27:55

308

Views

Why is counting the number of least prime factors of a sequence of consecutive integers insufficient to resolve Legendre's Conjecture?

Published on 27 Mar 2026 - 20:27

score 3.1k · Answer 14 · 2026-04-01 14:20:53

3.1k

Views

Are prime numbers really random?

Published on 01 Apr 2026 - 14:20

score 297 · Answer 15 · 2026-03-30 16:06:18

297

Views

Convergence of $\sum\limits_p \frac{\chi(p)}{p}$ and the prime number theorem

Published on 30 Mar 2026 - 16:06

List Question

What is the correct definition of a Cunningham chain of length $n$?

Primes that give different residue modulo $6$

How many prime numbers contain strictly increasing digits?

When will a prime element of $\Bbb{Z}[(\sqrt{5}-1)/2]$ have field norm equal to a rational prime?

Can $x^n-(x-1)^n$ be Prime if $n$ is Not Prime?

What do mathematicians mean when they say "we don't know how to predict which numbers are primes"?

Elementary Proof of Erdos for prime number theorem.

Proof Explanation - Odd prime division

How to calculate divisibility with 3 of a ratio?

Error in counting the number of relatively coprime integer pairs less than N

Is $10^{2^{21}}+1$ known to be composite?

Two Subsets of Squares of Reciprocals of Primes with Equal Sums

Why is counting the number of least prime factors of a sequence of consecutive integers insufficient to resolve Legendre's Conjecture?

Are prime numbers really random?

Convergence of $\sum\limits_p \frac{\chi(p)}{p}$ and the prime number theorem

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