Wrong again Mr. Sherlock.
PS - if your formula arrives at a date of 12,000 years since the construction of the Great Pyramids at Giza (you didn't say which one) then I think you need to factor in a fairly large constant as part of the equation. Like subtracting 7,500 +/-. It's pretty well documented who "commissioned" them and when (2,600 BC to 2,500 BC by pharaohs of the 3rd to 4th Dynasties).
I have proven without a doubt that the Pyramids were built 13,953 years ago. The Earth Mounds in Wales were built 16,710 years ago. Therefore the Earth Mounds in Wales were built 2,757 years before the Pyramids of Egypt. Send your academics over to my house and I will prove it to them.