Divisor 7903

To determine if any number is divisible by 7903, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 1129 - then it is divisible by 7903.

The following tests must pass:

• Test if a number is divisible by 7
• The "Roy Van Rossum Test" for Divisibility by 1129

Easy!