Divisor 21461

To determine if any number is divisible by 21461, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 11 and 1951 - then it is divisible by 21461.

The following tests must pass:

• Test if a number is divisible by 11
• The "Peter -jag- Annema Test" for Divisibility by 1951

Easy!