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 Title IsPrime Description: Checks to see if a number is a primary number. Prime numbers are commonly found in encryption schemes that use Public/Private keys. Hits: 1172 Since 25th November, 2003 Code: Select and Copy the Code Function IsPrime(ByRef pLngNumber) Dim lLngSquare Dim lLngIndex IsPrime = False If pLngNumber < 2 Then Exit Function If pLngNumber Mod 2 = 0 Then Exit Function lLngSquare = Sqr(pLngNumber) For lLngIndex = 3 To lLngSquare Step 2 If pLngNumber Mod lLngIndex = 0 Then Exit Function Next IsPrime = True End Function

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