Divisor 25837

To determine if any number is divisible by 25837, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 3691 - then it is divisible by 25837.

The following tests must pass:

• Test if a number is divisible by 7
• The "Lee Vilenski Test" for Divisibility by 3691

Easy!