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Autor/in | Bowling, Tom |
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Titel | Short Activity: Tests for the Divisibility of Non-Negative Integers by Primes |
Quelle | In: Australian Mathematics Education Journal, 2 (2020) 4, S.25-27 (3 Seiten)
PDF als Volltext |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 2652-0176 |
Schlagwörter | Mathematics Instruction; Teaching Methods; Division; Arithmetic; Numbers; Problem Solving |
Abstract | A test method is described for determining the divisibility of non-negative integers by a prime number. The test uses an integer multiplying factor that is defined for each prime, designated as [beta], to reduce the non-negative integer that is being tested by an order of magnitude in each of a sequence of steps to obtain a series of new numbers. The test is repeated until a new number is obtained that is either an obvious multiple of the prime number, which indicates that the original integer being tested is a multiple of the particular prime, or is not such a multiple, indicating that the original integer is not a multiple of the particular prime. The values of [beta] for successive prime numbers are defined by arithmetic progressions. (As Provided). |
Anmerkungen | Australian Association of Mathematics Teachers (AAMT). Tel: +61-8-8363-0288; e-mail: office@aamt.edu.au; Web site: https://primarystandards.aamt.edu.au/Journals |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
Update | 2024/1/01 |