Divisor 21117

To determine if any number is divisible by 21117, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 7039 - then it is divisible by 21117.

The following tests must pass:

• Test if a number is divisible by 3
• The "Philipp Legner Test" for Divisibility by 7039

Easy!