Four-digit numbers which are squared sums
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.
Keywords: modular arithmetic; number theory; sums of powers
Document Type: Research Article
Affiliations: Department of Mathematics, California State University, Tock, CA, USA
Publication date: 01 January 2009
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