Divisor 17998

To determine if any number is divisible by 17998, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 2 and 8999 - then it is divisible by 17998.

The following tests must pass:

• Test if a number is divisible by 2
• The "Sam Jelfs Test" for Divisibility by 8999

Easy!