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An Exce-L-ent Algorithm for Factors and Multiples

Jae Ki Lee, Kyong Mi Choi, and Melissa McAninch 

November 2012, Volume 18, Issue 4, Page 236

Abstract:
The L-shaped 2-5-3-7 algorithm, combining efficient Singaporean and Korean procedures with divisibility rules of primes 2, 3, 5, and 7, helps students identify LCMs and GCFs.

Keywords:
Fractions
Article
Algorithms
Grades 6-8
Basic Facts
Multiplication and Division