FIBONACCI NUMBERS WHICH ARE CONCATENATIONS OF THREE REPDIGITS
F. Erduvan, R. Keskin
Abstract
In this study, it is proved that the only Fibonacci numbers which are
concatenations of three repdigits are $144$, $233$, $377$, $610$, $987$, $17711$.
Keywords: Fibonacci number; concatenations; repdigit; Diophantine equations; linear forms in logarithms.