Divisibility Checker
Type any whole number and this divisibility calculator instantly shows which numbers from 2 to 12 divide it evenly, with the classic rule, the test calculation, and a PASS or FAIL result for each divisor.
How to use
- Type a whole number in the Number field — for example 1248.
- The calculator applies the standard divisibility rules for each divisor from 2 to 12 and shows the test it ran.
- Read the Rules Table: each row shows the divisor, the rule, the test calculation, and a PASS or FAIL badge.
- Check the summary line at the top to see which divisors your number divides by evenly.
Note: These are standard school rules: digit sum for 3 and 9, last 2 digits for 4, last 3 digits for 8, both 2 and 3 for 6, difference of alternate digits for 11, both 3 and 4 for 12.