Prime factor largest

		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 vote314 views1 answer
Unity how to find the largest value out of 2 numbers
C#Unity
0 vote131 views1 answer
Git rm
C#
4 votes175 views1 answer
Changing euler angles unity
C#
0 vote232 views1 answer
Unity make a gambeobject array
C#Unity
1 vote187 views1 answer
Unity getcomponent not working on ui
C#
1 vote260 views2 answers
Unity change material at runtime
C#Unity
0 vote186 views1 answer
How to redirect to another page in button clicked in asp.net c# index.cshtml
C#
2 votes160 views2 answers
Unity rotate around axis
C#
0 vote167 views1 answer
Init stirng list c#
C#
0 vote182 views1 answer
C# resize window without title bar
C#