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1 976 (0,094s)

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Relative Euler Function

Basic themes of document: mutually prime numbers; prime numbers; Euler function; prime factorial...

Pure mathematics

  • 2017
  • Jost
Result

On remarkable properties of primes near factorials and primorials

The distribution of primes is quite irregular. However, it is conjectured that if p is the smallest prime greater than n! + 1, then p – n! is also prime. We give prove that if a prime number p satisfies n! + 1 > p ...

Pure mathematics

  • 2022
  • Jimp
  • Link
Result

Euclidean Primes Have the Minimum Number of Primitive Roots

Denote by A(p) the number of primitive roots modulo a prime p. We show that for an arbitrary .epsilon. > 0 there exists a prime p such that A(p)/p < .epsilon. . Moreover, for an arbitrary Euclidean prime p we prove that A(q...

BA - Obecná matematika

  • 2008
  • Jx
Result

On distribution of primes around factorials

The distribution of primes is quite irregular. We prove the following theorem which however allows some relularity: If a prime number p satisfies n!+1prime larger than a given natural numb...

Pure mathematics

  • 2022
  • O
Result

Short remark on Fibonacci-Wieferich primes

Short remark on Fibonacci-Wieferich primes...

BA - Obecná matematika

  • 2008
  • Jx
Result

Straddled numbers: numbers equal to the sum of powers of consecutive primes from the least prime factor to the largest prime factor

Positive integers equal to the sum of powers of consecutive primes from the least prime factor to the largest prime factor are studied. They are called the straddled numbers and their properties are derived. There are also ...

Pure mathematics

  • 2019
  • Jimp
  • Link
Result

Prime filters of hyperlattices

The purpose of this paper is the study of prime ideals and prime filters in hyperlattices. I-filter and the filter generated by a in L are introduced. Moreover, we introduce dual distributive hyperlattices, and I-filter in dual dis...

BA - Obecná matematika

  • 2016
  • Jx
  • Link
Result

Primitive root biases for prime pairs I: Existence and non-totality of biases

We study the difference between the number of primitive roots modulo p and modulo p+k for prime pairs p, p+k. Assuming the Bateman Horn conjecture, we prove the existence of strong sign biases for such pairs. More importantly, we prove that ...

Pure mathematics

  • 2018
  • Jimp
  • Link
Result

Baťa primes

A new class of prime numbers - Baťa primes - is introduced. A positive integer is called a Baťa prime of class k if it ends with at least k 9s. We prove that for any positive integer k there exist infinitely many Baťa p...

Pure mathematics

  • 2023
  • O
  • Link
Result

Sophie Germain little suns

We study a digraph that has an interesting structure for n = 2p + 1, where p is a Sophie Germain prime. We also present a new relationship between Mersenne and Sophie Germain primes....

BA - Obecná matematika

  • 2004
  • Jx
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