This one says 27 years, and gangs of 100k labourers. 2.3 million blocks, totalling 6 million tonnes. 5.5 million tonnes of limestone, 8k tonnes of granite, and 500k tonnes of mortar.
By this, density of some local limestone is between 2250kg/m and 2700kg/m, a tonnes is 1000kg. This is a difficult size to manage, but with log rollers, and 100k workers, 27 years is absolutely doable.
From the article you linked.
None of the things you linked say anything about the time frame for construction.
https://en.m.wikipedia.org/wiki/Great_Pyramid_of_Giza
This one says 27 years, and gangs of 100k labourers. 2.3 million blocks, totalling 6 million tonnes. 5.5 million tonnes of limestone, 8k tonnes of granite, and 500k tonnes of mortar.
https://www.researchgate.net/figure/Physical-and-chemical-properties-of-some-Egyptian-limestone_tbl1_262921514
By this, density of some local limestone is between 2250kg/m and 2700kg/m, a tonnes is 1000kg. This is a difficult size to manage, but with log rollers, and 100k workers, 27 years is absolutely doable.