An asaṃkhyeya (Sanskrit: असंख्येय) is a Buddhist name for the number 10¹⁴⁰, or alternatively for the number ${\displaystyle 10^{(a\cdot 2^{b})}}$ as it is described in the Avatamsaka Sutra.^[1] The value of the number is different depending upon the translation. It is ${\displaystyle 10^{(5\cdot 2^{103})}}$ in the translation of Buddhabhadra, ${\displaystyle 10^{(7\cdot 2^{103})}}$ in that of Shikshananda and ${\displaystyle 10^{(10\cdot 2^{104})}}$ in that of Thomas Cleary, who may have made an error in calculation.^{[citation needed]} In these religious traditions, the word has the meaning of 'incalculable'.^[2]

Asaṃkhyeya is a Sanskrit word that appears often in the Buddhist texts. For example, Shakyamuni Buddha is said to have practiced for 4 great asaṃkhyeya kalpas before becoming a Buddha.^{[citation needed]}

• History of large numbers