Divisor 7642

To determine if any number is divisible by 7642, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 2 and 3821 - then it is divisible by 7642.

The following tests must pass:

• Test if a number is divisible by 2
• The "Gavin Stark Test" for Divisibility by 3821

Easy!