Divisor 16161

To determine if any number is divisible by 16161, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5387 - then it is divisible by 16161.

The following tests must pass:

• Test if a number is divisible by 3
• The "Christopher Osborn Test" for Divisibility by 5387

Easy!