Module HitungJmlhFaktorial
'Buka HitungJmlhFaktorial.vbproj
Sub Main()
Dim a, b, c, x, fact As Integer
a = 0 : b = 0 : c = 1 : fact = 1
x = InputBox("Masuk jumlah utk hitung: ")
For a = 1 To x
fact = 1 : c = a
Do While (c >= 1)
fact = fact * c : c = c - 1
Loop
b = b + fact
Next a
Debug.Print("Jumlah Factorial " & (a - 1) & "! = " & b)
End Sub
End Module
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