MathDB
Matching Digits

Source: ILL 1970 - Problem 2.

May 24, 2011
modular arithmeticEulernumber theory unsolvednumber theory

Problem Statement

Prove that the two last digits of 9999^{9^{9}} and 99999^{9^{9^{9}}} are the same in decimal representation.
Back to ProblemsView on AoPS