Divisor 19648

To determine if any number is divisible by 19648, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 64 and 307 - then it is divisible by 19648.

The following tests must pass:

• Test if a number is divisible by 64
• Test if a number is divisible by 307

Easy!