Dealing with large numbers.

Question

0.00/5 (No votes)

See more:

How can i deal with large numbers in C++. Example 2⁶⁰⁰⁰ or numbers raised to the powers of any two large prime numbers.

I am unable to process or store large numbers in C++. Is there any way to achieve that?

Posted 9-Jun-13 0:11am

compuknow

Updated 9-Jun-13 0:12am

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CPallini · Answer 1 · 2013-06-09T03:21:00

Solution 2

You need a library for big integers. Google[^] is your friend.

[update]
Have a look at the following Wikipedia pages:

There you may also find links to known implementations.
[/update]

Posted 9-Jun-13 3:21am

CPallini

Updated 10-Jun-13 0:46am

v3

Comments

Sergey Alexandrovich Kryukov 9-Jun-13 13:24pm

Fair enough, a 5.
—SA

CPallini 9-Jun-13 14:03pm

Thank you.

compuknow 10-Jun-13 4:57am

Are there any simple ones , I found a simple library called 'InfInt' (with only one header file) but it cannot hold floating numbers. Are there any similar simple libraries ?

CPallini 10-Jun-13 5:47am

Well a big integer library is not expected to deal with floating point numbers, is it?

compuknow 10-Jun-13 6:36am

Is there any library you know which can store large floating numbers ? How can store values that are too small in C++ ? Does double support large values?

CPallini 10-Jun-13 6:47am

See the 'update' part of my answer.

Kenneth Haugland · Answer 2 · 2013-06-09T00:39:00

Solution 1

perhaps System.Numerics.BigInteger is what you are looking for:
http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx[^]

Posted 9-Jun-13 0:39am

Kenneth Haugland

Comments

Ron Beyer 9-Jun-13 9:44am

System.Numerics.BigInteger is only for .NET, he doesn't say that he's using .NET, just C++ so this probably won't work for him.

compuknow 10-Jun-13 6:41am

How to use it in visual C++ ?