FAIRFAX, Va. (WUSA9) -- A Virginia student is one of only 12 people who got a perfect score on the AP Calculus AB exam.
Landon Labuskes, 15, is a junior at Paul VI Catholic High School in Fairfax.
Landon took the AP Calculus AB exam in Spring 2015 as a sophomore.
His accomplishment even caught President Obama's attention.
AP exams are based on a 5-point scale, where a 5 is equivalent to a grade of A in the corresponding college course, according to the press release from Paul VI.
Landon received the top score of 5.
