Divisor 27769

To determine if any number is divisible by 27769, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 3967 - then it is divisible by 27769.

The following tests must pass:

• Test if a number is divisible by 7
• The "Carl Löfgren Test" for Divisibility by 3967

Easy!