Divisor 13391

To determine if any number is divisible by 13391, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 1913 - then it is divisible by 13391.

The following tests must pass:

• Test if a number is divisible by 7
• The "Devcycler Test" for Divisibility by 1913

Easy!