Divisor 27801

To determine if any number is divisible by 27801, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 3089 - then it is divisible by 27801.

The following tests must pass:

• Test if a number is divisible by 9
• The "Brad Test" for Divisibility by 3089

Easy!