MathDB

(193) 6

Part of 1988 Tournament Of Towns

Problems(1)

TOT 193 1988 Autumn J6 natural wih deximal expression of 0s and 1s

Source:

3/7/2021
Does there exist a natural number which is not a divisor of any natural number whose decimal expression consists of zeros and ones, with no more than 19881988 ones?
number theory