Divisor 21536

To determine if any number is divisible by 21536, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 32 and 673 - then it is divisible by 21536.

The following tests must pass:

• Test if a number is divisible by 32
• Test if a number is divisible by 673

Easy!