Mathematics Homework Solutions
Problem
#92373

Find Divisibility Rules for the Numbers from 2 to 13

Derive rules to test whether a number is divisible by N, where N ranges from 2 to 13. E.g. A number is divisible by 3 if the sum of the digits is divisible by 3. Show that a palindromic number which has an even number of digits is always divisible by 11.


Solution Summary

Divisibility Rules for the Numbers from 2 to 20 are found. The solution is detailed and well presented.

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