AMC 10 Step by Step
2020 AMC 10BProblem 4P1-10~2 minPrint

The acute angles of a right triangle are aa^{\circ} and bb^{\circ} , where a>ba>b and both aa and bb are prime numbers. What is the least possible value of bb ?

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Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.