Divisor 8557

To determine if any number is divisible by 8557, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 43 and 199 - then it is divisible by 8557.

The following tests must pass:

• Test if a number is divisible by 43
• Test if a number is divisible by 199

Easy!