Divisor 28009

To determine if any number is divisible by 28009, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 37 and 757 - then it is divisible by 28009.

The following tests must pass:

• Test if a number is divisible by 37
• Test if a number is divisible by 757

Easy!