Question 1158871
{{{174=2*87=3*58=6*29}}}


If x years ago, product was 174, then   {{{(35-x)(12-x)=174}}}

{{{(35-x)(12-x)=29*6}}}, and these two factors differ by 23, on each side of this equation.


{{{35-x=29}}}
{{{x=35-29}}}
{{{highlight(x=6)}}}--------------six years ago