How old was the man for whom Āryabhaṭa numeration is named when he wrote Āryabhaṭīya?
Āryabhaṭa numeration: The Āryabhaṭa numeration is a system of numerals based on Sanskrit phonemes. Aryabhata: Aryabhata (IAST: Āryabhaṭa ) or Aryabhata I (476–550 CE) was the first of the major mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy.
i don't know