In dictionaries:
Thabit number
In number theory, a Thabit number, Thâbit ibn Qurra number, or 321 number is an integer of the form for a non-negative integer n.
Zayd ibn Thabit
Zāyd bin Thābit bin al-Ḍaḥḥāk was the personal scribe of the Islamic prophet Muhammad, serving as the chief recorder of the Quranic text.
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