Question

How to convert a long string with digits to BigInteger in C#

Answer 1

using System.Numerics;

namespace WinFormsApp1 
{
    public partial class Form1 : Form
    {
    public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            var bigInteger = BigInteger.Parse("9994873740982712356127491834513618011122799");

            MessageBox.Show(bigInteger.ToString());
        }
    }
}



/*
run:

9994873740982712356127491834513618011122799
 
*/

 

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Answer 2

using System.Numerics;

namespace WinFormsApp1 
{
    public partial class Form1 : Form
    {
    public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            var bigInteger = BigInteger.Parse("-999487374098271235612749183451361801112279001");

            MessageBox.Show(bigInteger.ToString());
        }
    }
}



/*
run:

-999487374098271235612749183451361801112279001

*/

 

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