MathDB

3.4

Part of 2014 Saudi Arabia Pre-TST

Problems(1)

last digits of n^3 are ...201320132013.

Source: 2014 Saudi Arabia Pre-TST 3.4

9/13/2020
Prove that there exists a positive integer nn such that the last digits of n3n^3 are ...201320132013...201320132013.
number theoryPowerlast digits