there were multiple pyramids which one do u mean?
No, the pyramid of Khufu was built while Khufu was still alive. In fact, he built it. As an example, egyptologists believe that the queen's chamber (which was not meant for any of his wives) was originally built for Khufu, but he changed his mind and built something bigger for himself.
The Red Pyramid was built at the Dahshur pyramid field.
The step pyramid was the first type of pyramid to be built.
King Djoser was the one who built the pyramid
The first pyramid was the Step Pyramid at Saqqara, built for King Zoser in 2750 BC.
The Step Pyramid was built in Circa 2630 B.C.
about 1570 BC was the last pyramid built.
Such pyramid is in Egypt, and was built on 2560 BC.
The second pyramid was The Pyramid of Khaefra. It was built for the Pharaoh Khaefra (also Chephren, Khephren)
the pyramid of menkaura was built 2490BC and is 213feet high.
the step pyramid of Pharaoh Djoser at Saqarra
The first pyramid was the Step Pyramid at Saqqara, built for King Zoser in 2750 BC.