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.

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.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Question

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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