Rules of Divisibility
| 1
divides
every whole number 2 divides a whole number if it is even 3 divides a whole number if three divides the sum of the digits 4 divides a whole number if four divides the last two digits 5 divides a whole number if it ends in five or zero 6 divides a whole number if the rules for two and three above both work 7 divides a whole number if removing the digit from the ones position, doubling it, and subtracting it from the rest of the number, yields a number divisible by seven 8 divides a whole number if eight divides the last three digits 9 divides a whole number if nine divides the sum of the digits 10 divides a whole number if it ends in zero |