Divisor 13897

To determine if any number is divisible by 13897, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 13 and 1069 - then it is divisible by 13897.

The following tests must pass:

• Test if a number is divisible by 13
• The "Lee Marlow Test" for Divisibility by 1069

Easy!