Divisibility Tests
A number is divisible by the given number if...
Test for 2
last digit is __, __,
__, __, or __
Test for 3
Test for 4
sum of the digits is
_________________ by ___
last 2 digits are
_________________ by ___
Test for 5
last digit is __ or __
Test for 6
its divisible by ____ and ____
No Test for 7
Test for 8
last 3 digits are
_________________ by ___
Test for 10
last digit is __
ok - there actually is one but it’s
easier to just try dividing by 7.
Test for 9
sum of the digits is
_________________ by ___