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

A listing of divisibility rules with illustrated examples and explanations.

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?

Worked example of basic divisibility tests. ... Divisibility tests for 2, 3, 4, 5, 6, 9, 10. AboutTranscript ...... What about the divisibility rule for seven and eight?

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.mathsisfun.com/divisibility-rules.html

Example: is 723 divisible by 3? We could try dividing 723 by 3. Or use the "3" rule : 7+2+3=12, and 12 ÷ 3 = 4 exactly Yes. Note: 0 (zero) is a "yes" result to any of ...

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 ...