Fatto matematico: 7142 is the smallest number that can not be written as the sum of 2 volumes of rectangular boxes with integer dimensions less than 20.
Trivia: 7142 is an uninteresting number.
Data storica: July 21st is the day in 356 BC that the Temple of Artemis in Ephesus, one of the Seven Wonders of the World, is destroyed by arson.