Largest prime factor C#

		static long LargestFactor(long n)
        {
            long lastFactor;
            if (n%2==0)
            {
                lastFactor = 2;
                n/=2;
                while (n % 2 == 0)
                    n/=2;
            }
            else
            {
                lastFactor = 1;
            }
            long factor = 3;
            long maxFactor = Convert.ToInt64(Math.Sqrt(n));
            while (n > 1 && factor <= maxFactor)
            {
                if(n % factor == 0)
                {
                    n/=factor;
                    lastFactor=factor;
                    while (n % factor == 0)
                        n/= factor;
                    maxFactor = Convert.ToInt64(Math.Sqrt(n));
                }
                factor += 2;
            }
            if (n == 1)
                return lastFactor;
            else
                return n;
        }

Source: icodeblock.blogspot.com

Similar codes

0 vote130 views1 answer
Select range in list c#
C#
0 vote135 views1 answer
How to redirect to extern page in .net core
C#
0 vote149 views1 answer
Hello world in unity c#
C#Unity
1 vote123 views1 answer
How to goto a website using linklabel c#
C#
0 vote120 views1 answer
All and Any linq c# examlpe replace
C#
0 vote155 views1 answer
Freeze time unity 2d script
C#Unity
0 vote123 views1 answer
Select from list c#
C#
0 vote115 views1 answer
To string c# fields
C#
0 vote120 views2 answers
By value by reference c#
C#
46 votes115 views6 answers
Unity C# random number
C#