Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers

Let (M_k) be the sequence of Mulatu numbers defined by M_0=4, M_1=1, M_k=M_(k-1)+M_(k-2) and (F_k) be the Fibonacci sequence given by the recurrence F_k=F_(k-1)+F_(k-2) with the initial conditions F_0=0, F_1=1 for k≥2. In this paper, we showed that all Mulatu numbers, that are concatenations of two...

Full description

Saved in:
Bibliographic Details
Main Authors: Fatih Erduvan, Merve Güney Duman
Format: Article
Language:English
Published: Sakarya University 2023-10-01
Series:Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/2894199
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850252260773199872
author Fatih Erduvan
Merve Güney Duman
author_facet Fatih Erduvan
Merve Güney Duman
author_sort Fatih Erduvan
collection DOAJ
description Let (M_k) be the sequence of Mulatu numbers defined by M_0=4, M_1=1, M_k=M_(k-1)+M_(k-2) and (F_k) be the Fibonacci sequence given by the recurrence F_k=F_(k-1)+F_(k-2) with the initial conditions F_0=0, F_1=1 for k≥2. In this paper, we showed that all Mulatu numbers, that are concatenations of two Fibonacci numbers are 11,28. That is, we solved the equation M_k=〖10〗^d F_m+F_n, where d indicates the number of digits of F_n. We found the solutions of this equation as (k,m,n,d)∈{(4,2,2,1),(6,3,6,1)}. Moreover the solutions of this equation displayed as M_4=(F_2 F_2 ) ̅=11 and M_6=(F_3 F_6 ) ̅=28. Here the main tools are linear forms in logarithms and Baker Davenport basis reduction method.
format Article
id doaj-art-ee47595a7b154109a2daed2ed395e2be
institution OA Journals
issn 2147-835X
language English
publishDate 2023-10-01
publisher Sakarya University
record_format Article
series Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
spelling doaj-art-ee47595a7b154109a2daed2ed395e2be2025-08-20T01:57:40ZengSakarya UniversitySakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi2147-835X2023-10-012751122112710.16984/saufenbilder.123557128Mulatu Numbers Which Are Concatenation of Two Fibonacci NumbersFatih Erduvanhttps://orcid.org/0000-0001-7254-2296Merve Güney Duman0https://orcid.org/0000-0002-6340-4817SAKARYA UNIVERSITY OF APPLIED SCIENCES, FACULTY OF TECHNOLOGYLet (M_k) be the sequence of Mulatu numbers defined by M_0=4, M_1=1, M_k=M_(k-1)+M_(k-2) and (F_k) be the Fibonacci sequence given by the recurrence F_k=F_(k-1)+F_(k-2) with the initial conditions F_0=0, F_1=1 for k≥2. In this paper, we showed that all Mulatu numbers, that are concatenations of two Fibonacci numbers are 11,28. That is, we solved the equation M_k=〖10〗^d F_m+F_n, where d indicates the number of digits of F_n. We found the solutions of this equation as (k,m,n,d)∈{(4,2,2,1),(6,3,6,1)}. Moreover the solutions of this equation displayed as M_4=(F_2 F_2 ) ̅=11 and M_6=(F_3 F_6 ) ̅=28. Here the main tools are linear forms in logarithms and Baker Davenport basis reduction method.https://dergipark.org.tr/tr/download/article-file/2894199mulatu and fibonacci numberslinear forms in logarithmsexponential diophantine equationslinear forms in logarithmsmulatu and fibonacci numbersreduction methodexponantial diophantine equations
spellingShingle Fatih Erduvan
Merve Güney Duman
Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
mulatu and fibonacci numbers
linear forms in logarithms
exponential diophantine equations
linear forms in logarithms
mulatu and fibonacci numbers
reduction method
exponantial diophantine equations
title Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers
title_full Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers
title_fullStr Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers
title_full_unstemmed Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers
title_short Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers
title_sort mulatu numbers which are concatenation of two fibonacci numbers
topic mulatu and fibonacci numbers
linear forms in logarithms
exponential diophantine equations
linear forms in logarithms
mulatu and fibonacci numbers
reduction method
exponantial diophantine equations
url https://dergipark.org.tr/tr/download/article-file/2894199
work_keys_str_mv AT fatiherduvan mulatunumberswhichareconcatenationoftwofibonaccinumbers
AT merveguneyduman mulatunumberswhichareconcatenationoftwofibonaccinumbers