Divisor 19769

To determine if any number is divisible by 19769, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 53 and 373 - then it is divisible by 19769.

The following tests must pass:

• Test if a number is divisible by 53
• Test if a number is divisible by 373

Easy!