Divisor 19105

To determine if any number is divisible by 19105, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 5 and 3821 - then it is divisible by 19105.

The following tests must pass:

• Test if a number is divisible by 5
• The "Gavin Stark Test" for Divisibility by 3821

Easy!