System.Numerics.BigInteger (struct)

System.Numerics.BigInteger represents a theoretically arbitrary large number

Properties and methods

`Abs()`
`Add()`
`Compare()`
`CompareTo()`
`Divide()`
`DivRem()`
`Equals()`
`GetBitLength()`
`GetByteCount()`
`GetHashCode()`
`GreatestCommonDivisor()`
`IsEven`
`IsOne`
`IsPowerOfTwo`
`IsZero`
`Log()`
`Log10()`
`Max()`
`Min()`
`MinusOne`
`ModPow()`
`Multiply()`
`Negate()`
`One`
`Parse()`	A `static` method to creates a `BigInteger` from a textual representation of a number. Compare with `ToString()`
`Pow()`
`Remainder()`
`Sign`
`Subtract()`
`ToByteArray()`
`ToString()`	Creates a textual representation of the big integer in different formats, for example `bigNum.ToString("X")` returns the number's hexadecimal representation. Compare with `Parse()`
`TryFormat()`
`TryParse()`
`TryWriteBytes()`
`Zero`

There are multiple constructors for BigInteger. One interesting constructors takes an array of bytes to construct the big integer

[byte[]] $bytes = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
$bigInt = [System.Numerics.BigInteger]::new($bytes)

The first byte in the is the least signifcant, the last byte the most signifcant one:

$bigInt.ToString("X")
0A090807060504030201

A big integer can alternatively be created from a textual representation of the number (i. e. a string) like so:

$bigInt = [System.Numerics.BigInteger]::Parse("47390263963055590408705")

In PowerShell, the data type suffix for integers to indicate a BigInteger is n:

PS C:\> (123456789012345678901234567890n).GetType().FullName
System.Numerics.BigInteger