11936

How to use BigInteger in VS 2010

Question:

I have been trying to use the BigInteger type, that is supposedly new in .NET Framework 4.0.

I don't seem to be able to get to it, and get an error when trying to reference it via Using System.Numerics.

Any idea what I'm doing wrong? Sorry if this is a stupid question...

Answer1:

<ol><li>

<a href="http://msdn.microsoft.com/en-us/library/wkze6zky(v=VS.100).aspx" rel="nofollow">Add a reference</a> to the <em>System.Numerics</em> assembly to your project.

a. In Solution Explorer, right-click the project node and click <strong>Add Reference</strong>.

b. In the <strong>Add Reference</strong> dialog box, select the <strong>.NET</strong> tab.

c. Select <strong>System.Numerics</strong>, and then click <strong>OK</strong>.

</li> <li>

Add a <a href="http://msdn.microsoft.com/en-us/library/sf0df423.aspx" rel="nofollow">using directive</a> importing the <em>System.Numerics</em> namespace:

using System.Numerics; </li> <li>

Use the <a href="http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx" rel="nofollow">BigInteger structure</a>:

var i = new BigInteger(934157136952); </li> </ol>

Answer2:

Did you add a reference to System.Numerics?

<blockquote>

Right click on References -> Add Reference -> .NET tab -> System.Numerics -> OK

</blockquote>

Answer3:

Add a Reference to System.Numerics assembly.

Add using System.Numerics; statement

Answer4:

Have you added a project reference (Project... Add Reference...) to System.Numerics?

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