# Hard SAT Math Question 100 — Video Explanation | 1600.now

Source: https://1600.now/hard/100

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100

$ax^2 + 67x + c$  
In the given quadratic function, $a$ and $c$ are positive constants. If $px + q$ is a factor of the quadratic, where $p$ and $q$ are positive constants, what is the greatest possible integer value of $ac$?