Genesis 50 3
This took a full 40 days, the normal time for the process, and the Egyptians mourned for him for 70 days.
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NLT Genesis 50:3The embalming process took the usual forty days. And the Egyptians mourned his death for seventy days.
AMP Genesis 50:3Then forty days were devoted [to this purpose] for him, for that is the customary number of days required for those who are embalmed. And the Egyptians wept and bemoaned him [as they would for royalty] for seventy days.
KJV Genesis 50:3And forty days were fulfilled for him; for so are fulfilled the days of those which are embalmed: and the Egyptians mourned for him threescore and ten days.