IMO 1992 LL IND30
Let Pn = (19 + 92)(192 + 922) \cdot \cdot \cdot (19n + 92n) for each positive
IMO 1992 LL IND30
Origin: IND
Problem
Let Pn = (19 + 92)(192 + 922) \cdot \cdot \cdot (19n + 92n) for each positive integer n. Determine, with proof, the least positive integer m, if it exists, for which Pm is divisible by 3333.