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Fibonacci numbers which are concatenations of two repdigits


Adel Alahmadi
Alaa Altassan
Florian Luca
Hatoon Shoaib

Abstract

We show that the only Fibonacci numbers that are concatenations of two repdigits are 13, 21, 34, 55, 89, 144, 233, 377.

Key words: Fibonacci numbers, repdigit, linear forms in complex logarithms.


Journal Identifiers


eISSN: 1727-933X
print ISSN: 1607-3606