Divisor 2201

To determine if any number is divisible by 2201, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 31 and 71 - then it is divisible by 2201.

The following tests must pass:

• Test if a number is divisible by 31
• Test if a number is divisible by 71

Easy!