Divisor 13557

To determine if any number is divisible by 13557, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 4519 - then it is divisible by 13557.

The following tests must pass:

• Test if a number is divisible by 3
• The "Jonas Wahlen Test" for Divisibility by 4519

Easy!