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Late-Babylonian mathematics (450-100 BC), represented by some 60 cuneiformtablets from Babylon and Uruk, is incompletely known compared to its abundantlypreserved, well-studied Old-Babylonian predecessor (1800-1600 BC). With thepresent paper, 16 fragments from Babylon, probably belonging to 13 differenttablets, are added to this corpus. Two remarkable tablets represent a hithertounknown class of very large factorization tables that can be adequatelydescribed as Babylonian examples of number crunching (Section I). In thesetables a very large sexagesimal number representing a small factor (9 or 12)raised to a high power, or a product of such numbers, is repeatedly divided byits constituent factors (9 or 12), very likely until 1 is reached. In Text Athe initial number is a 25-digit number equivalent to 9 to the power 46; inText B it is a 30-digit number equivalent to 9 to the power 11 times 12 to thepower 39 - the longest number attested in ancient Mesopotamia and, probably, inall antiquity. Most other fragments belong to tables with reciprocals (SectionII) and squares (Section III). Finally, two fragments contain multiplicationsof one kind or another (Section IV).

The Powers of 9 and Related Mathematical Tables from Babylon