how to input Biggest integer

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how to input this type of numbers and save in any variable and print it..
Number Like this...
2318678973167632186632156464312357431213574631247864132153346979

Posted 26-Aug-13 7:13am

Arsalaan Ahmed

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Zoltán Zörgő 26-Aug-13 14:22pm

You better post here the whole text of your assignment, since it is hard to believe, that a teacher could write such nonsense... it is more likely that you have not understood it.

2 solutions

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Thomas Daniels · Accepted Answer · 2013-08-26T07:21:00

Solution 2

Use a BigInteger[^] (available in .NET 4.0 and higher).
First, add a reference to System.Numerics.dll.
Then, add this at the top of your code file:

C#

using System.Numerics;

Now, use the BigInteger.Parse[^] method to parse your number:

C#

BigInteger b = BigInteger.Parse("2318678973167632186632156464312357431213574631247864132153346979");
// now, you can do some other operations with it such as multiplying, dividing ...
Console.WriteLine(b.ToString()); // prints the large number on the console

Hope this helps.

Posted 26-Aug-13 7:21am

Thomas Daniels

Updated 26-Aug-13 7:23am

v2

Comments

Arsalaan Ahmed 26-Aug-13 13:42pm

how to do this without using any dll..?

Thomas Daniels 26-Aug-13 13:47pm

You can't, but System.Numerics.dll is included in the .NET Framework, so you don't have to install anything.

Arsalaan Ahmed 26-Aug-13 13:49pm

this is my assignment.. Assignment rule is no dll file use..

[no name] 26-Aug-13 14:10pm

You would need to go back to your teacher and find out what that means. Just using anything out of the .NET framework, you would be using a DLL. So your requirement makes no sense.

Zoltán Zörgő 26-Aug-13 14:20pm

That's it. No dlls, no .net application at all :( But the rest of the requirement makes as less sense, thus abbaspirmoradi's comment is really suitable as answer :)

ridoy 26-Aug-13 14:34pm

5ed!

Thomas Daniels 27-Aug-13 2:50am

Thank you!

Ganesan Senthilvel · Accepted Answer · 2013-08-26T07:18:00

In .NET 4 onward, you can use a BigInteger instance as you would use any other integral type. BigInteger overloads the standard numeric operators to enable you to perform basic mathematical operations such as addition, subtraction, division, multiplication, subtraction, negation, and unary negation.

Ref: http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx[^]