Divisor 6891

To determine if any number is divisible by 6891, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 2297 - then it is divisible by 6891.

The following tests must pass:

• Test if a number is divisible by 3
• The "Sam Caldwell Test" for Divisibility by 2297

Easy!