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 vote267 views1 answer
Fetch error Not Found /swagger/v1/swagger
C#
0 vote202 views1 answer
C# extension method in non static class
C#
0 vote218 views1 answer
Razor: show editable list
C#
0 vote248 views1 answer
Get datacontext of itemscontrol item c#
C#
-1 vote218 views1 answer
Unity check if colliders are touching
C#Unity
2 votes201 views1 answer
Unity deactivate all colliders of a gameobject
C#
0 vote201 views1 answer
How to get the current time in milliseconds .net
C#
1 vote210 views1 answer
Xamarin timer example
C#
0 vote201 views1 answer
Net use delete
C#
0 vote234 views1 answer
How to create a Blazor server-side application in command prompt
C#