en.wikipedia.org/wiki/Divisibility_rule

The basic rule for divisibility by 4 is that if the number formed by the last two digits
in a number is divisible by 4, the ...

www.softschools.com/math/topics/divisibility_rules_2_4_8_5_10/

Divisibility Rules: 2, 4, 8 and 5, 10. Have you ever wondered why some numbers
will divide evenly (without a remainder) into a number, while others will not?

www.helpingwithmath.com/by_subject/division/div_divisibility_rules.htm

A listing of divisibility rules with illustrated examples and explanations.

www.mathsisfun.com/divisibility-rules.html

"Divisible By" means "when you divide one number by another the result is a
whole number" ... Or use the "3" rule: 7+2+3=12, and 12 ÷ 3 = 4 exactly Yes.

www.mathwarehouse.com/arithmetic/numbers/divisibility-rules-and-tests.php

Divisibility tests and rules explained, defined and with examples for divisibility by
2,3,4,5,6,8,9,10, and 11.Divisibility Calculator.

www.mathgoodies.com/lessons/vol3/divisibility.html

Divisibility is a good way to factor large numbers. Learn to test for divisibility by 2,
3, 4, 5, 6, 8, 9, and 10.

www.math-drills.com/division/division_divisibility_040708_4_001.php

The Divisibility Rules for 4, 7 and 8 (4 Digit Numbers) (A) math worksheet from
the Division Worksheet page at Math-Drills.com.

www.ixl.com/math/grade-4/divisibility-rules

Improve your skills with free problems in 'Divisibility rules' and thousands of other
practice lessons. ... E.16 Divisibility rules ... L.13Divisibility rules for 4 and 8.

www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-divisibility-tests/v/divisibility-tests-for-2-3-4-5-6-9-10

Worked example of basic divisibility tests. ... The why of the 3 divisibility rule · The
why of the 9 divisibility rule ... Divisibility tests for 2, 3, 4, 5, 6, 9, 10. About ...

www.basic-mathematics.com/divisibility-rules.html

Divisibility rules of whole numbers are very useful because they help us to
quickly determine if a number can be divided by 2, 3, 4, 5, 9, and 10 without
doing ...