Virtual Study Solutions: Find Prime Number

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<span style="font-family: "verdana" , sans-serif;">How to Find Prime Number in C++</span></h3>
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<span style="font-family: "verdana" , sans-serif;">Welcome to Virtual Study Solutions <b><a href="http://virtualstudysolutions.blogspot.com/2017/03/introduction-of-c-programming-language.html">C++ Tutorial</a></b>. Today we will discuss and learn <b>how to Find Prime Number in C++</b> Programming.</span></div>
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Topics we will cover in this tutorial will be as follows:</div>
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<li>What is a Prime Number</li>
<li>C++ Program to Find Prime Number</li>
<li>Prime Number C++ Program Logic</li>
<li>Example Code to Find Prime Number</li>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtraXSumvvP-LPwPovWcmb_Xy97p44XIvzqt19M_BO4eP0NDOHd1NiI6l3vZ_xoqUHA1bSgkxiHgoiCyeUiAz6RqZzILKKVDEz5G6riX5qVVewCgMxPytIzYHOxEDjsTQP9wZc3mRtXko/s1600/cplus+plus+programming+language.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="How to Write C++ Program to Find Prime Number" border="0" height="219" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtraXSumvvP-LPwPovWcmb_Xy97p44XIvzqt19M_BO4eP0NDOHd1NiI6l3vZ_xoqUHA1bSgkxiHgoiCyeUiAz6RqZzILKKVDEz5G6riX5qVVewCgMxPytIzYHOxEDjsTQP9wZc3mRtXko/s320/cplus+plus+programming+language.png" title="How to Write C++ Program to Find Prime Number" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"> C++ Program to Find Prime Number</td></tr>
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<span style="font-family: "verdana" , sans-serif;">What is a PRIME NUMBER</span></h3>
<span style="font-family: "verdana" , sans-serif;">Prime Number is a Natural number which is greater than 1 and it has only two divisor 1 and itself is Called Prime number ".</span></div>
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<span style="font-family: "verdana" , sans-serif;">Lets take a Example:  </span></div>
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<span style="font-family: "verdana" , sans-serif;">2, 3, 5, 7 is prime Number, because it has only two divisors 1 and itself.</span><br />
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<span style="font-family: Verdana, sans-serif;"><b>Also Read:</b> <a href="http://virtualstudysolutions.blogspot.com/2017/02/how-to-write-c-program-to-find-Fibonacci-Series.html">How to write C++ program to find Fibonacci Series</a></span><h3 style="text-align: left;">
<span style="font-family: "verdana" , sans-serif;">C++ Program To Find Prime Number</span></h3>
<span style="font-family: "verdana" , sans-serif;"><span style="background-color: #f3f3f3;">#include<iostream.h><br /><br />#include<conio.h><br /><br />        void main()<br /><br />        {<br /><br />         //clrscr();<br /><br />         int number,count=0;<br /><br />cout<<"ENTER NUMBER TO CHECK IT IS PRIME OR NOT ";<br /><br />          cin>>number;<br /><br />           for(int a=1;a<=number;a++)<br /><br />               {<br /><br />                if(number%a==0)<br /><br />                   {<br /><br />                  count++;<br /><br />                   }<br /><br />               }<br /><br />       if(count==2)<br /><br />         {<br /><br />          cout<<" PRIME NUMBER \n";<br /><br />         }<br /><br />       else<br /><br />         {<br /><br />          cout<<" NOT A PRIME NUMBER \n";<br /><br />         }<br /><br />       //getch();<br /><br />       }</span></span><br />
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<span style="font-family: "verdana" , sans-serif;">Prime Number C++ Program Logic </span></h3>
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<span style="font-family: "verdana" , sans-serif;">To Understand the C++ Program logic to find Prime number first of all Recall PRIME NUMBER definition which is " a number which divides by 1 and itself ".<br /><br />   </span></div>
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<span style="font-family: "verdana" , sans-serif;">So we in our program we will make a condition like that in which user will enter a number and our program will check it by dividing it from 1 up to itself.</span></div>
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<span style="font-family: "verdana" , sans-serif;"><br />   To check that how much times it has divided to numbers from 1 to itself we take a variable and increment it each times when a number is divided.</span><br />
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<span style="font-family: Verdana, sans-serif;"><b>Also Read:</b> <a href="http://virtualstudysolutions.blogspot.com/2017/02/how-to-write-c-program-to-find-factorial-of-Number.html">How to write C++ Program to find factorial of Number</a></span></div>
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<span style="font-family: "verdana" , sans-serif;"><br />As You may already Know in C++ Programming we take a <b>FOR LOOP</b> which will start from 1 up to number that has entered to check whether it is PRIME NUMBER or not with in FOR LOOP we will set an <b>IF condition</b> and place counter (count++) variable in its body so whenever a number from 1 to number which has entered to check divides than IF condition becomes true and counter variable will be incremented.</span></div>
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<span style="font-family: "verdana" , sans-serif;"><br />   When FOR LOOP is completed we check from IF condition that:</span></div>
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<li><span style="font-family: "verdana" , sans-serif;"><b>if</b> counter variables value is equal to 2 than number is PRIME </span></li>
<li><span style="font-family: "verdana" , sans-serif;"><b>else</b> NUMBER IS NOT PRIME.</span></li>
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<span style="font-family: "verdana" , sans-serif;">   Because if number divided two times by 1 and itself counter variable will incremented two times if more than two times counter variable will have value greater than 2. </span><br />
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<span style="font-family: Verdana, sans-serif;"><b>Also Read:</b> <a href="http://virtualstudysolutions.blogspot.com/2017/03/what-is-recursive-function-in-c-with.html">What is Recursive function in c++ with Examples</a></span><div>
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<span style="font-family: "verdana" , sans-serif;">Example Code to Find Prime Number</span></h3>
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<span style="font-family: "verdana" , sans-serif;">Here is the Example Code of C++ Program to Find Prime Number Screenshot:</span></div>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAt7JHu9TfszOavuWnUkZRaclnGZxY5nNU2dlhqY7eEKBp-vcCEcxZy_vcwUJoroxAriyl1_DhUbg6PsDtn0WXbeQsn17_VvhyphenhyphenCvC1KqgzYBKCYZkdK-4XkrcQXJI0kdQwqfHyJiXrNbQ/s1600/Prime-numbers-in-C%252B%252B-programming-code.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto; text-align: center;"><span style="color: black; font-family: "verdana" , sans-serif;"><img alt="Example Code to Find Prime Number in C++ Programming" border="0" height="531" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAt7JHu9TfszOavuWnUkZRaclnGZxY5nNU2dlhqY7eEKBp-vcCEcxZy_vcwUJoroxAriyl1_DhUbg6PsDtn0WXbeQsn17_VvhyphenhyphenCvC1KqgzYBKCYZkdK-4XkrcQXJI0kdQwqfHyJiXrNbQ/s640/Prime-numbers-in-C%252B%252B-programming-code.JPG" title="Example Code to Find Prime Number in C++ Programming" width="640" /></span></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-family: "verdana" , sans-serif; font-size: small;">Example Code to Find Prime Number in C++ </span></td></tr>
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<span style="font-family: "verdana" , sans-serif;">Code output to Find Prime Number</span></h3>
<span style="font-family: "verdana" , sans-serif;">Here is the Sample Output of Example program to find Prime Number:</span></div>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDtIf7l_sdHgMtrZbRkefg7S88nSWGg7IiuIefG3mQ4TYKMA6x64G716NF-hAg7FAFn-BEGNqWt9TIgLEp4EThujlzyVOO92A3NQAstG-cbWQzG-Cd8zc6KNmO1DvD3lRdOll0SP6w-bM/s1600/code+outpur+of+example+program+to+find+prime+number.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto; text-align: center;"><img alt="Sample Output of Example program to find Prime Number" border="0" height="312" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDtIf7l_sdHgMtrZbRkefg7S88nSWGg7IiuIefG3mQ4TYKMA6x64G716NF-hAg7FAFn-BEGNqWt9TIgLEp4EThujlzyVOO92A3NQAstG-cbWQzG-Cd8zc6KNmO1DvD3lRdOll0SP6w-bM/s640/code+outpur+of+example+program+to+find+prime+number.JPG" title="Sample Output of Example program to find Prime Number" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-family: "verdana" , sans-serif;">Sample Output of Example program to find Prime Number</span></td></tr>
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<span style="font-family: "verdana" , sans-serif;"><br />We Recommended You to </span><span style="font-family: "verdana" , sans-serif;">change the logic of above Program </span><span style="font-family: "verdana" , sans-serif;">For fast learning and do experiments with codes.</span></div>
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How to Write C++ Program to Find Prime Number

How to Find Prime Number in C++ Welcome to Virtual Study Solutions C++ Tutorial . Today we will discuss and learn how to Find Prime Num...

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