Divisor 18805

To determine if any number is divisible by 18805, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 5 and 3761 - then it is divisible by 18805.

The following tests must pass:

• Test if a number is divisible by 5
• The "Marcin Konowalczyk Test" for Divisibility by 3761

Easy!