%0 Journal Article %A Chappelon, Jonathan %T On the multiplicative order of \(a^n\) modulo \(n\) %J Journal of integer sequences %D 2010 %V 13 %N 2 %U http://geodesic.mathdoc.fr/item/JIS_2010__13_2_a3/ %G en %F JIS_2010__13_2_a3