The Great Pyramid has an estimates 2.3 million 6 ton blocks and was built over a period of 27 years. Just doing the math shows they would have had to place one block every 6 minute.
2,300,000 / 27 = 85,185 blocks a year
85,185 / 365 = 233 blocks a day
233 / 24 = 9.7 blocks an hour, round that to 10.
So 10 blocks an hour or 1 block every 6 minutes for 27 years. Not counting time off for nights and whatnot.
I know they used a lot of people, somewhere in the tens of thousands, but this seems fast. Am I missing something?
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Someone recently [did the math](https://spectrum.ieee.org/how-many-people-did-it-take-to-build-the-great-pyramid) and although it sounds like a lot of work would be required, their calculations showed about 900 men would be enough to place the blocks, plus a few thousand more to do the quarrying, finishing, etc., coming to a total of about 7000 people.
Archaeologists estimate only about 20,000 people lived on site during construction. And that would have included people who supported the settlement, not only construction workers.
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