Divisor 26747

To determine if any number is divisible by 26747, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 3821 - then it is divisible by 26747.

The following tests must pass:

• Test if a number is divisible by 7
• The "Gavin Stark Test" for Divisibility by 3821

Easy!