Divisor 17769

To determine if any number is divisible by 17769, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5923 - then it is divisible by 17769.

The following tests must pass:

• Test if a number is divisible by 3
• The "David Southern Test" for Divisibility by 5923

Easy!