Four-digit numbers which are squared sums
Authors: Coughlin, Heather; Jue, Brian
Source: International Journal of Mathematical Education in Science and Technology, Volume 40, Number 4, January 2009 , pp. 550-554(5)
Publisher: Taylor and Francis Ltd
Abstract:There is a very natural way to divide a four-digit number into 2 two-digit numbers. Applying an algorithm to this pair of numbers, determine how often the original four-digit number reappears.
Document Type: Research Article
Affiliations: Department of Mathematics, California State University, Tock, CA, USA
Publication date: January 1, 2009