Times square
Penny thinks she knows everything about 鈥淢agic鈥� squares, so Joe suggested she might design a three-by-three 鈥淭imes鈥� square, where the products of the three numbers in each row, column and main diagonal are all the same. The only other requirement was that all the numbers had to be different integers. Penny found there are many such squares with different products. What is the smallest product for a three-by-three 鈥淭imes鈥� square?
WIN 拢15 will be awarded to the sender of the first correct answer opened on Wednesday 15 December 2010. The Editor鈥檚 decision is final. Please send entries to Enigma 1621, 快猫短视频, Lacon House, 84 Theobald鈥檚 Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
Answer to 1615 Slide enlarger: the number is 384615
Advertisement
The winner Tom Farley of Pelham, New York, US