Question

Is there an equivalent to the Bertrand's postulate between factorials and primorials?

score 330 · Answer 1 · 2026-03-14 08:13:55

330

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Is there an equivalent to the Bertrand's postulate between factorials and primorials?

Published on 14 Mar 2026 - 8:13

score 2.7k · Answer 2 · 2013-07-23 18:29:19

2.7k

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Is there a better upper bound for the primorial $x\#$ than $4^x$

Published on 23 Jul 2013 - 18:29

score 134 · Answer 3 · 2013-07-24 15:57:58

134

Views

Counting the number of distinct integers in a range that fit a specified pattern

Published on 24 Jul 2013 - 15:57

score 85 · Answer 4 · 2013-08-12 03:41:46

85

Views

Trying to understand why a set of residues modulo a primorial $p_k\#$ has a range of values smaller than $2p_{k+1}$

Published on 12 Aug 2013 - 3:41

score 48 · Answer 5 · 2013-08-12 05:26:27

48

Views

Reasoning about $\left\lfloor\frac{p_k\#}{p_{k+1}}\right\rfloor$

Published on 12 Aug 2013 - 5:26

score 127 · Answer 6 · 2013-09-08 22:18:18

127

Views

Unexpected data for primes?

Published on 08 Sep 2013 - 22:18

score 517 · Answer 7 · 2013-10-27 20:00:03

517

Views

Density of primes in intervals less than primorial numbers

Published on 27 Oct 2013 - 20:00

score 379 · Answer 8 · 2026-03-25 10:52:45

379

Views

Question about the reduced residue system for a given primorial

Published on 25 Mar 2026 - 10:52

score 317 · Answer 9 · 2026-03-25 10:56:05

317

Views

Distribution of a reduced residue system within a primorial

Published on 25 Mar 2026 - 10:56

score 95 · Answer 10 · 2013-11-15 04:44:35

95

Views

Methods for finding a relatively prime integer

Published on 15 Nov 2013 - 4:44

score 75 · Answer 11 · 2026-03-25 10:58:54

75

Views

Can all elements of a reduced residue class of a primorial $p$ be expressed as a simple equation in terms of the factors of the primorial?

Published on 25 Mar 2026 - 10:58

score 113 · Answer 12 · 2026-03-25 10:53:44

113

Views

Solving for $x$ where $p^x \equiv 1 \pmod {q\#}$

Published on 25 Mar 2026 - 10:53

score 38 · Answer 13 · 2014-01-04 12:55:52

38

Views

A question about $t^x \equiv 1 \pmod {q\#}$ where $t,x$ are integers and $q\#$ is a primorial.

Published on 04 Jan 2014 - 12:55

score 201 · Answer 14 · 2026-03-25 10:55:26

201

Views

Infinite "Twins" in reduced residue systems modulo primorials

Published on 25 Mar 2026 - 10:55

score 583 · Answer 15 · 2017-06-05 06:38:56

583

Views

Estimating the number of integers less than $m$ that are relatively prime to $p_n\#$

Published on 05 Jun 2017 - 6:38

List Question

Is there an equivalent to the Bertrand's postulate between factorials and primorials?

Is there a better upper bound for the primorial $x\#$ than $4^x$

Counting the number of distinct integers in a range that fit a specified pattern

Trying to understand why a set of residues modulo a primorial $p_k\#$ has a range of values smaller than $2p_{k+1}$

Reasoning about $\left\lfloor\frac{p_k\#}{p_{k+1}}\right\rfloor$

Unexpected data for primes?

Density of primes in intervals less than primorial numbers

Question about the reduced residue system for a given primorial

Distribution of a reduced residue system within a primorial

Methods for finding a relatively prime integer

Can all elements of a reduced residue class of a primorial $p$ be expressed as a simple equation in terms of the factors of the primorial?

Solving for $x$ where $p^x \equiv 1 \pmod {q\#}$

A question about $t^x \equiv 1 \pmod {q\#}$ where $t,x$ are integers and $q\#$ is a primorial.

Infinite "Twins" in reduced residue systems modulo primorials

Estimating the number of integers less than $m$ that are relatively prime to $p_n\#$

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