Divisor 16861

To determine if any number is divisible by 16861, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 13 and 1297 - then it is divisible by 16861.

The following tests must pass:

• Test if a number is divisible by 13
• The "Marius D'jaed'r Test" for Divisibility by 1297

Easy!