Rules for Divisibility of Number 7: A New Approach
https://doi.org/10.55989/WAFD6823
Autors: U. S. Isienyi
Date: Jul 01, 2024
Edition: April 2024 Edition
Volume: 5
Issue: 1
Pages: 3 (395 - 397)
Abstract:
Rules for divisibility of number 7 were conspicuously ignored in New General Mathematics Book II because the authors as at then had no clue. However, in an attempt to simplify some of these unaddressed issues while delivering lectures, one is compelled to make further discoveries as to expose our students to some of these simple but difficult areas of study. This paper presents rules for the divisibility of number 7 as well as associated mathematical problems. Previous scholars reported a number of approaches to the rule for divisibility of number 7. However, the present study have provided the approach that can solve the divisibility by 7 which is the approach of keeping the last digit and multiplying the remaining digit number by 3 and summing up to check for possibility of division by 7; the process is continued until it becomes easy to see that 7 can divide the new number, otherwise, the original number is not divisible by 7. This approach has the potential to expose our students to other areas of study.
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