Divisibility Rules

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1. 
Divisibility Rule for 2
 
Any even number (a number ending in 0, 2, 4, 6, or 8) can be divided evenly by 2.
 
2. 
Divisibility Rule for 10
 
Any number that ends in 0 can be divided evenly by 10.
 
3. 
Divisibility Rule for 5
 
Any number that ends in 0 or 5 can be divided evenly by 5.
 
4. 
Divisibility Rule for 4
 
If the last TWO digits can be divided evenly by 4, then so can the entire number.
 
5. 
Divisibility Rule for 8
 
If the last THREE digits can be divided evenly by 8, then so can the entire number.
 
6. 
Divisibility Rule for 3
 
Add up the digits of the number. If that sum can be divided evenly by 3, then so can the entire number.
 
7. 
Divisibility Rule for 9
 
Add up the digits of the number. If that sum can be divided evenly by 9, then so can the entire number.
 
8. 
Divisibility Rule for 6
 
If the number is even and if the sum of the digits can be divided evenly by 3, then the entire number can be divided evenly by 6.