MathDB

9.2

Part of 1993 All-Russian Olympiad Regional Round

Problems(1)

not a multiple of 11 All-Russian MO 1993 Regional (R4) 9.2

Source:

8/26/2024
Find the largest natural number which cannot be turned into a multiple of 1111 by reordering its (decimal) digits.
number theorydividesdivisible