Commun. Korean Math. Soc. 2016; 31(3): 447-450
Printed July 31, 2016
https://doi.org/10.4134/CKMS.c150161
Copyright © The Korean Mathematical Society.
Prapanpong Pongsriiam
Silpakorn University
Let $F_{n}$ and $L_n$ be the $n$th Fibonacci number and Lucas number, respectively. The order of appearance of $m$ in the Fibonacci sequence, denoted by $z(m)$, is the smallest positive integer $k$ such that $m$ divides $F_k$. Marques obtained the formula of $z(L_n^k)$ in some cases. In this article, we obtain the formula of $z(L_n^k)$ for all $n, k\geq 1$.
Keywords: Fibonacci number, Lucas number, the order of appearance, the rank of appearance
MSC numbers: Primary 11B39
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