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

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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.

Keywords: modular arithmetic; number theory; sums of powers

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/00207390802566956

Affiliations: Department of Mathematics, California State University, Tock, CA, USA

Publication date: January 1, 2009

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