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by Brian Gladman on May 21, 2017

Sunday Times Teaser 2852 – When in Rome

by Nick MacKinnon

Published May 21 2017 (link)

An ancient five-by-five table of letters have been found in Rome. All the ten different five-letter rows across and five-letter columns down are Roman numerals, with no letter exceeding a C.  The across numbers are, in order, even, even, a cube, a prime, and a power of 2.  The down numbers include a cube, the rest being even or prime.

Which two Roman numerals cross at the middle square?

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