Divisor 6419

To determine if any number is divisible by 6419, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 49 and 131 - then it is divisible by 6419.

The following tests must pass:

• Test if a number is divisible by 49
• Test if a number is divisible by 131

Easy!