Divisor 15389

To determine if any number is divisible by 15389, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 11 and 1399 - then it is divisible by 15389.

The following tests must pass:

• Test if a number is divisible by 11
• The "N T Test" for Divisibility by 1399

Easy!