Divisor 25663

To determine if any number is divisible by 25663, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 11 and 2333 - then it is divisible by 25663.

The following tests must pass:

• Test if a number is divisible by 11
• The "TBurnip Test" for Divisibility by 2333

Easy!