https://drorbn.net/api.php?action=feedcontributions&feedformat=atom&user=62.231.243.136Drorbn - User contributions [en]2026-05-01T17:28:35ZUser contributionsMediaWiki 1.39.6https://drorbn.net/index.php?title=Talk:06-240/Homework_Assignment_4&diff=5087Talk:06-240/Homework Assignment 42007-06-05T11:03:34Z<p>62.231.243.136: </p>
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<div>== Divisibility by Prime Number==<br />
<br />
Pls correct me if I were wrong.<br />
The operation of cut away the unit digit is a distraction. If we consider the unit digit, the operation basically is a deduction of a number, and that number is divisible by 7.<br />
The whole operation is shown as follow:<br />
<br />
{|<br />
|<div align="right">8641<s>5</s><br />
|-<br />
|<div align="right"> 10<s>5</s><br />
|</div>62.231.243.136