Question

Finding an $x$ that satisfies the Jacobsthal function for the primorial of the $n$th prime.

score 67 · Answer 1 · 2026-02-23 12:07:49

67

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Finding an $x$ that satisfies the Jacobsthal function for the primorial of the $n$th prime.

Published on 23 Feb 2026 - 12:07

score 71 · Answer 2 · 2023-07-01 12:10:59

71

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Continued aliquot sums

Published on 01 Jul 2023 - 12:10

score 46 · Answer 3 · 2023-08-06 03:03:38

46

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What relationship does the primality characteristic function have with the summation group that it's over? Can we form a sheaf?

Published on 06 Aug 2023 - 3:03

score 46 · Answer 4 · 2026-02-23 10:06:17

46

Views

The function $f(n) = \sum_{d \mid p_n\#} \mu(d)\sum_{r^2 = 1\mod d}\lfloor\frac{p_{n+1}^2 - 2 - r}{d}\rfloor$ has no fixed point $f(n) = n$?

Published on 23 Feb 2026 - 10:06

score 98 · Answer 5 · 2023-11-30 21:24:00

98

Views

Sum of reciprocals of primorial numbers

Published on 30 Nov 2023 - 21:24

score 160 · Answer 6 · 2023-12-12 22:34:24

160

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Question related to the primorial of the 1000th prime number , 7919#.

Published on 12 Dec 2023 - 22:34

score 90 · Answer 7 · 2024-03-04 10:43:01

90

Views

A new topology on $\Bbb{Z}$ based upon basis $X_d = $ the insolubility of $x^2 = 1\pmod d$ etc

Published on 04 Mar 2024 - 10:43

score 488 · Answer 8 · 2024-03-24 02:23:16

488

Views

Questions about $\mathbb Z/30\mathbb Z$

Published on 24 Mar 2024 - 2:23

score 71 · Answer 9 · 2024-03-30 16:43:25

71

Views

A result about $\mathbb Z/p_n\#\mathbb Z$ that I want to prove

Published on 30 Mar 2024 - 16:43

score 36 · Answer 10 · 2024-03-30 19:18:13

36

Views

Estimating the upper bound for $\prod\limits_{p \le x}{p^{\frac{1}{p}}}$

Published on 30 Mar 2024 - 19:18

score 106 · Answer 11 · 2024-03-31 11:52:51

106

Views

Difficulties with $\mathbb Z_3$, $3$-adic numbers and a relative questioning

Published on 31 Mar 2024 - 11:52

score 201 · Answer 12 · 2015-01-13 23:35:11

201

Views

How often is $1+\prod_{k=1}^n p_k$ not prime?

Published on 13 Jan 2015 - 23:35

score 216 · Answer 13 · 2015-01-26 19:22:25

216

Views

Understanding how to estimate $\pi(x)$ based on Paul Erdos's proof of Bertrand's Postulate

Published on 26 Jan 2015 - 19:22

score 192 · Answer 14 · 2015-02-01 04:21:45

192

Views

Is the Wikipedia article on the proof for Bertrand's Postulate correct?

Published on 01 Feb 2015 - 4:21

score 110 · Answer 15 · 2026-03-25 09:28:39

110

Views

Reasoning about the number of elements in a reduced residue system relative a primorial

Published on 25 Mar 2026 - 9:28

List Question

Finding an $x$ that satisfies the Jacobsthal function for the primorial of the $n$th prime.

Continued aliquot sums

What relationship does the primality characteristic function have with the summation group that it's over? Can we form a sheaf?

The function $f(n) = \sum_{d \mid p_n\#} \mu(d)\sum_{r^2 = 1\mod d}\lfloor\frac{p_{n+1}^2 - 2 - r}{d}\rfloor$ has no fixed point $f(n) = n$?

Sum of reciprocals of primorial numbers

Question related to the primorial of the 1000th prime number , 7919#.

A new topology on $\Bbb{Z}$ based upon basis $X_d = $ the insolubility of $x^2 = 1\pmod d$ etc

Questions about $\mathbb Z/30\mathbb Z$

A result about $\mathbb Z/p_n\#\mathbb Z$ that I want to prove

Estimating the upper bound for $\prod\limits_{p \le x}{p^{\frac{1}{p}}}$

Difficulties with $\mathbb Z_3$, $3$-adic numbers and a relative questioning

How often is $1+\prod_{k=1}^n p_k$ not prime?

Understanding how to estimate $\pi(x)$ based on Paul Erdos's proof of Bertrand's Postulate

Is the Wikipedia article on the proof for Bertrand's Postulate correct?

Reasoning about the number of elements in a reduced residue system relative a primorial

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