Maths Olympiad Prep

Library / CEMC Gauss (Grade 7) /335 of 462

CEMC Gauss (Grade 7), 2002

Number theory Difficulty 2.0 Junior Find the answer Canada

Each of the integers 226 and 318 have digits whose product is 24. How many three-digit positive integers have digits whose product is 24?

(A) 44 (B) 1818 (C) 2424 (D) 1212 (E) 2121

We don't reproduce this publisher's solutions. Their own solution is here — work the problem first.
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.