Divisibility by 11

Topic:Divisibility

Divisibility is a key concept in number theory. We say that an integer a is divisible by an integer b if there exists an integer c such that a=bc.

Test for divisibility by 11. Subtract the last digit from the remaining leading truncated number. If the result is divisible by 11, then so was the first number. Apply this rule over and over again as necessary.

A divisibility rule is a method that can be used to determine whether a number is evenly divisible by other numbers. Divisibility rules are a shortcut for testing a number's factors without resorting to division calculations. Although divisibility rules can be created for any base, only rules for decimal are given here.

Here is a example of a numeric and algebraic operations

Question:

Find the divisibility test of 11

Answer:




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