last two digits; last two figures
Refers specifically to the final two digits of a number, often used in contexts like phone numbers, serial numbers, or lottery results.
Those whose last two digits of the winning number are '42' are eligible.
Please tell me the last two digits of your phone number.
Compound of 下 (しも, 'lower') + 二 (ふた, 'two') + 桁 (けた, 'digit'). The reading ふたけた is a combination of the native Japanese numeral ふた and the counter けた.