If the given number is then using this number to form two more 3-digit numbers, like:
The first number is , and the other number is .
These can also be written as
Summing these three, we get:
which is always divisible by .
If the given number is then using this number to form two more 3-digit numbers, like:
The first number is , and the other number is .
These can also be written as
Summing these three, we get:
which is always divisible by .