The Buddha's biography includes a math exam. In the Lalitavistara, the young Bodhisattva, competing for his bride, is examined by the mathematician Arjuna: do you know the counting beyond a koti (ten million)? He answers with a ladder of number names climbing by hundreds — koti, ayuta, niyuta, on and on — to tallakṣaṇa: 10⁵³. And that is only the first of several series; the examiner concedes long before the candidate runs out. A sacred biography in which the hero's credentials include naming numbers with fifty-three zeros.