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Fibonacci numbers which are concatenations of two repdigits
Journal article   Peer reviewed

Fibonacci numbers which are concatenations of two repdigits

Adel Alahmadi, Alaa Altassan, Florian Luca and Hatoon Shoaib
Quaestiones mathematicae, Vol.44(2), pp.281-290
01/02/2021

Abstract

Mathematics Physical Sciences Science & Technology
We show that the only Fibonacci numbers that are concatenations of two repdigits are 13, 21, 34, 55, 89, 144, 233, 377.

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