Number theoryDifficulty 2.0JuniorFind the answerCanada
How many integers n are there with the property that the product of the digits of n is 0, where 5000≤n≤6000?
(A) 332 (B) 270 (C) 301 (D) 272 (E) 299
Want a route through all this instead of an archive? The track
puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.
Source: CEMC, University of Waterloo,
licensed CC-BY-NC-4.0.
Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.