Divisor 9003

To determine if any number is divisible by 9003, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 3001 - then it is divisible by 9003.

The following tests must pass:

• Test if a number is divisible by 3
• The "Jonas Fischer Test" for Divisibility by 3001

Easy!