On divisibility by 7 and other low valued primes

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Abstract

A group of preservice teachers could not recall or devise criteria for determining when 7 (or any higher prime) divides N. Tests for divisibility, a topic once studied by students, seems to have disappeared from the curriculum, with teachers themselves having only a pedestrian knowledge of this topic. This paper presents several different ways to construct tests of divisibility for low valued divisors.

Original languageEnglish
Pages (from-to)622-626
Number of pages5
JournalInternational Journal of Mathematical Education in Science and Technology
Volume31
Issue number4
DOIs
StatePublished - 1 Jan 2000

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