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Related papers: On the Existence of Odd Perfect Numbers

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We study odd numbers through a straightforward indexing. We focus in particular on odd prime and composite numbers and their distribution. With a counting argument, we calculate the limit of two sums and compare their convergence rate.

General Mathematics · Mathematics 2018-12-11 Wolf Marc , Wolf François , Villemin François-Xavier

We generalize the definition of spoof perfect numbers to multiperfect numbers and study their characteristics. As a result, we find several new odd spoof multiperfect numbers, akin to Descartes' number. An example is $8999757$, which would…

Number Theory · Mathematics 2025-02-25 László Tóth

This document seeks to prove there are infinitely many primes whose difference is 2, referred to as twin prime pairs. This proof's methodology involves constructing a function that approximates the number of positive integers, less than a…

General Mathematics · Mathematics 2017-11-01 Kevin B. Espinet

Two permutations of the natural numbers diverge if the absolute value of the difference of their elements in the same position goes to infinity. We show that there exists an infinite number of pairwise divergent permutations of the…

Combinatorics · Mathematics 2019-04-11 Emanuela Fachini , János Körner

In the proposed matrix primes, through which one can readily generate a sequence of primes. The paper also proposes a number of theorems proved by which an infinite number of prime numbers twins

General Mathematics · Mathematics 2016-09-16 S. N. Baibekov , A. A. Durmagambetov

We study pairs of consecutive odd numbers through a straightforward indexing. We focus in particular on twin primes and their distribution. With a counting argument, we calculate the limit of an alternating sum that is equal to 1 which…

General Mathematics · Mathematics 2021-06-08 Marc Wolf , FranÇOis Wolf , FranÇOis-Xavier Villemin

This paper describes a method used to construct infinitely many probable counterexamples of the abc conjecture over the rational integers.

Number Theory · Mathematics 2007-05-23 N. A. Carella

We define a sequence of positive integers recursively, where each term is determined as follows: starting with a given positive integer, if the term is odd, the next is the sum of its positive divisors; if the term is even, the subsequent…

Number Theory · Mathematics 2025-06-04 Ritesh Dwivedi , Rohit Yadav

In this note, we prove that there exist infinite dimensional excellent rings.

Commutative Algebra · Mathematics 2018-05-08 Hiromu Tanaka

Many mathematical statements have the following form. If something is true for all finite subsets of an infinite set $I$, then it is true for all of $I$. This paper describes some old and new results on infinite sets of linear and…

Combinatorics · Mathematics 2024-09-24 Melvyn B. Nathanson

Natural numbers satisfying an unusual property are mentioned by the author in [5], in which their infinitude is also proved. In this paper, we start with an arbitrary natural number which is not a multiple of 10 and non-palindromic, form…

Number Theory · Mathematics 2020-12-04 Daniel Tsai

Starting with Zhang's theorem on the infinitude of prime doubles, we give an inductive argument that there exists an infinite number of prime $k$-tuples for at least one admissible set $\mathcal{H}_k=\{h_1,\ldots,h_k\}$ for each $k$.

Number Theory · Mathematics 2018-10-26 J. LaChapelle

We extend our previous work on odd spoof multiperfect numbers to the case where spoof factor multiplicities exceed $2$. This leads to the identification of $11$ new integers that would be odd multiperfect numbers if one of their prime…

Number Theory · Mathematics 2025-10-03 László Tóth

We study decompositions of natural numbers into triangular summands. For instance, we prove that any natural number can be represented as a sum of four triangular numbers, two of them having even indices and the other two having odd…

Number Theory · Mathematics 2016-02-04 Dmitry Krachun

We present lower bounds on the sum and product of the distinct prime factors of an odd perfect number, which provide a lower bound on the size of the odd perfect number as a function of the number of its distinct prime factors.

Number Theory · Mathematics 2010-08-09 Anirudh Prabhu

We call positive integer n a near-perfect number, if it is sum of all its proper divisors, except of one of them ("redundant divisor"). We prove an Euclid-like theorem for near-perfect numbers and obtain some other results for them.

Number Theory · Mathematics 2012-02-20 Vladimir Shevelev

We show that there are infinitely many square numbers , which are constrocted by putting two square numbers together , that non of them are divisible by $10$ . We also investigate the interesting properties of some square numbers.

General Mathematics · Mathematics 2019-02-28 Farid Jokar

A well-known conjecture asserts that there are infinitely many primes $p$ for which $p - 1$ is a perfect square. We obtain upper and lower bounds of matching order on the number of pairs of distinct primes $p,q \le x$ for which $(p - 1)(q -…

Number Theory · Mathematics 2015-07-23 Tristan Freiberg , Carl Pomerance

If $N={q^k}{n^2}$ is an odd perfect number given in Eulerian form, then Sorli's conjecture predicts that $k=\nu_{q}(N)=1$. In this article, we give some further results related to this conjecture and those contained in the papers…

Number Theory · Mathematics 2022-02-09 Jose Arnaldo B. Dris

The twin primes conjecture is a very old problem. Tacitly it is supposed that the primes it deals with are finite. In the present paper we consider three problems that are not related to finite primes but deal with infinite integers. The…

General Mathematics · Mathematics 2015-02-24 Maurice Margenstern , Yaroslav D. Sergeyev