divisibility rule for 2

Rule:
A number is divisible by 2,if its unit’s digit is any of the digits 0,2,4,6,8.
Example 1:
Is 567894 divisible by 2?
Solution:
The unit digit in the number 567894 is 4.
According to the rule given above,the number 567894 is divisible by 2.
Example 2:
Is 782343 divisible by 2?
Solution:
The unit digit in the number 782343 is 3.
As per the rule given above,the number 782343 is not divisible by 2