Daily Archives: January 30, 2022
day/dydd 30 at 7puzzleblog.com
The Main Challenge When listing the first seven whole numbers, above 20, that are not multiples of 3, 5 or 7 or do not contain a 3, 5 or 7 as part of their number, what is the 7th number in … Continue reading
Posted in 7puzzleblog.com
Leave a comment