Question

Is my conjecture true? : Every primorial is a superior highly regular number, and every superior highly regular number is a primorial.

score 462 · Answer 1 · 2026-03-25 06:12:41

462

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Is my conjecture true? : Every primorial is a superior highly regular number, and every superior highly regular number is a primorial.

Published on 25 Mar 2026 - 6:12

score 74 · Answer 2 · 2026-03-25 21:46:47

74

Views

Does there exist any integer $ n> 1$ for which $6^{2n}-25$ is prime?

Published on 25 Mar 2026 - 21:46

score 9.2k · Answer 3 · 2026-03-27 17:04:24

9.2k

Views

Is it sufficient for a number to be a prime if it is not divisible by prime numbers smaller than it?

Published on 27 Mar 2026 - 17:04

score 1.2k · Answer 4 · 2014-05-23 14:16:23

1.2k

Views

Algorithm for checking Prime Power

Published on 23 May 2014 - 14:16

score 5.6k · Answer 5 · 2026-03-27 15:35:48

5.6k

Views

Smallest Prime Factor - Why does this algorithm find prime numbers?

Published on 27 Mar 2026 - 15:35

score 573 · Answer 6 · 2026-04-02 10:18:21

573

Views

Prove that there are an infinity of prime $ak+b$, $a$ and $b$ coprimes

Published on 02 Apr 2026 - 10:18

score 683 · Answer 7 · 2014-05-23 20:50:01

683

Views

Prime Number Theorem and sum of reciprocals of primes

Published on 23 May 2014 - 20:50

score 89 · Answer 8 · 2014-05-23 22:32:50

89

Views

Compute $ \lim_{n\to \infty}\prod_{i=1}^n B(p_i^{-2})$

Published on 23 May 2014 - 22:32

score 367 · Answer 9 · 2014-05-24 18:10:37

367

Views

Is there a known function $f(n) = P_n$, where $P_n$ denotes the $n$th prime number?

Published on 24 May 2014 - 18:10

score 63 · Answer 10 · 2026-04-01 23:02:05

63

Views

Has anyone used the isomorphism with $\Bbb{N}_{\gt 0}$ as a monomial ordering?

Published on 01 Apr 2026 - 23:02

score 427 · Answer 11 · 2014-05-25 19:54:21

427

Views

the sum of ascending powers of a prime can not equal the sum of ascending powers of a different prime.

Published on 25 May 2014 - 19:54

score 131 · Answer 12 · 2014-05-26 01:20:02

131

Views

Subfactorial primes

Published on 26 May 2014 - 1:20

score 82 · Answer 13 · 2014-05-26 07:47:08

82

Views

Given $N$ is the product of $m$ distinct primes, how many $K(K+1)$ are divisible by $N$?

Published on 26 May 2014 - 7:47

score 42 · Answer 14 · 2014-05-26 09:51:23

42

Views

Cut a piece of dough into $3$ even pieces

Published on 26 May 2014 - 9:51

score 84 · Answer 15 · 2026-03-25 07:47:55

84

Views

For all prime $\ p > \ 2,\ p=2^x \cdot Ord_p(2)+1$?

Published on 25 Mar 2026 - 7:47

List Question

Is my conjecture true? : Every primorial is a superior highly regular number, and every superior highly regular number is a primorial.

Does there exist any integer $ n> 1$ for which $6^{2n}-25$ is prime?

Is it sufficient for a number to be a prime if it is not divisible by prime numbers smaller than it?

Algorithm for checking Prime Power

Smallest Prime Factor - Why does this algorithm find prime numbers?

Prove that there are an infinity of prime $ak+b$, $a$ and $b$ coprimes

Prime Number Theorem and sum of reciprocals of primes

Compute $ \lim_{n\to \infty}\prod_{i=1}^n B(p_i^{-2})$

Is there a known function $f(n) = P_n$, where $P_n$ denotes the $n$th prime number?

Has anyone used the isomorphism with $\Bbb{N}_{\gt 0}$ as a monomial ordering?

the sum of ascending powers of a prime can not equal the sum of ascending powers of a different prime.

Subfactorial primes

Given $N$ is the product of $m$ distinct primes, how many $K(K+1)$ are divisible by $N$?

Cut a piece of dough into $3$ even pieces

For all prime $\ p > \ 2,\ p=2^x \cdot Ord_p(2)+1$?

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