%0 Journal Article
%T Congruence and Uniqueness of Certain Markoff Numbers
%A Ying Zhang
%J Mathematics
%D 2006
%I arXiv
%R 10.4064/aa128-3-7
%X By making use of only simple facts about congruence, we first show that every even Markoff number is congruent to 2 modulo 32, and then, generalizing an earlier result of Baragar, establish the uniqueness for those Markoff numbers c where one of 3c - 2 and 3c + 2 is a prime power, 4 times a prime power, or 8 times a prime power.
%U http://arxiv.org/abs/math/0612620v2