Let class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022314X16301627&_mathId=si1.gif&_user=111111111&_pii=S0022314X16301627&_rdoc=1&_issn=0022314X&md5=9c79c55c5226658ebe8d394d6d433415" title="Click to view the MathML source">g□(p)class="mathContainer hidden">class="mathCode"> denote the least square-free primitive root modulo p . We show that class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022314X16301627&_mathId=si18.gif&_user=111111111&_pii=S0022314X16301627&_rdoc=1&_issn=0022314X&md5=a34a94603f585c9a58056a5b81cbe8aa" title="Click to view the MathML source">g□(p)<p0.96class="mathContainer hidden">class="mathCode"> for all p.