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BigInteger.CompareTo Method (BigInteger)

Compares this instance to a second BigInteger and returns an integer that indicates whether the value of this instance is less than, equal to, or greater than the value of the specified object.

Namespace:  System.Numerics
Assembly:  System.Numerics (in System.Numerics.dll)

abstract CompareTo : 
        other:BigInteger -> int 
override CompareTo : 
        other:BigInteger -> int 


Type: System.Numerics.BigInteger
The object to compare.

Return Value

Type: System.Int32
A signed integer value that indicates the relationship of this instance to other, as shown in the following table.

Return value


Less than zero

The current instance is less than other.


The current instance equals other.

Greater than zero

The current instance is greater than other.



This overload of the CompareTo method implements the IComparable(T).CompareTo method. It is used by generic collection objects to order the items in the collection.

The following example illustrates the use of the CompareTo(BigInteger) method to order a list of StarInfo objects. Each StarInfo object provides information about a star's name and its distance from the Earth in miles. StarInfo implements the IComparable(T) interface, which enables StarInfo objects to be sorted by generic collection classes. Its IComparable(T).CompareTo implementation just wraps a call to CompareTo(BigInteger).

No code example is currently available or this language may not be supported.

The following code then instantiates four StarInfo objects and stores them in a generic List(T) object. After the List(T).Sort method is called, StarInfo objects are displayed in order of their distance from the Earth.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.