How many years did the Egyptian Pharaoh khafra live for?

Pharaoh Khafra, also known as Khafre, is believed to have reigned during the Fourth Dynasty of Egypt, around 2558 to 2532 BCE. While the exact length of his life is not definitively known, he is thought to have lived for approximately 40 to 50 years. His reign is marked by the construction of the second-largest pyramid at Giza and the Great Sphinx, which is often attributed to him. However, specific details about his lifespan remain largely speculative.