Prove the given statement of divisibility of 13 Divisibility of 13 Method 1:              Step 1: Group the digits of N by 3’s and starting from the ones place.             Step 2: Alternately add subtract each group.             Step 3: If 13| the result of step 2, then 13|N.

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Prove the given statement of divisibility of 13

Divisibility of 13 Method 1: 

            Step 1: Group the digits of N by 3’s and starting from the ones place.

            Step 2: Alternately add subtract each group.

            Step 3: If 13| the result of step 2, then 13|N.

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