Divisor 8158

To determine if any number is divisible by 8158, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 2 and 4079 - then it is divisible by 8158.

The following tests must pass:

• Test if a number is divisible by 2
• The "Louis Irwin Test" for Divisibility by 4079

Easy!