Divisor 20736

To determine if any number is divisible by 20736, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 256 and 81 - then it is divisible by 20736.

The following tests must pass:

• Test if a number is divisible by 256
• Test if a number is divisible by 81

Easy!