Sieve of Eratosthenes

Sieve of Eratosthenes.ps1

<#
Sieve of Eratosthenes in PowerShell
converted from C++ and Java code found here:
http://www.algolist.net/Algorithms/Number_theoretic/Sieve_of_Eratosthenes
2018 Matt Musante
Public Domain
#>

function runEratosthenesSieve{param ([int]$upperBound)
    [int]$upperBoundSquareRoot = [Math]::Floor([math]::Sqrt($upperBound))
    [bool[]]$isComposite = New-Object bool[] ($upperBound + 1)
    for ([int]$m = 2; $m -le $upperBoundSquareRoot; $m++) {
        if (!$isComposite[$m]) {
            Write-Host $m" " -NoNewline
            for ([int]$k = $m * $m; $k -le $upperBound; $k += $m){
                $isComposite[$k] = $true
            }
        }
    }
    for ([int]$m = $upperBoundSquareRoot; $m -le $upperBound; $m++){
        if (!$isComposite[$m]) {
            Write-Host $m" " -NoNewline
        }
    }
}

runEratosthenesSieve 100