Elementary division rules enable you to quickly determine small factors of a given number. These rules are useful for reduction of fractions and for rapid determination of simple factors.
More information
More information
Sites 3
From Carlos Rivera's Prime Puzzles and Problems collection. Carlos asks for the general divisibility rules for any prime number.
From the Furman University Electronic Journal of Undergraduate Mathematics. Apoorva Khare's paper is available as an abstract, DVI, and PostScript.
Proof of the elementary division rules, plus some lesser-known rules for larger divisors and other bases.
Proof of the elementary division rules, plus some lesser-known rules for larger divisors and other bases.
From the Furman University Electronic Journal of Undergraduate Mathematics. Apoorva Khare's paper is available as an abstract, DVI, and PostScript.
From Carlos Rivera's Prime Puzzles and Problems collection. Carlos asks for the general divisibility rules for any prime number.
