Mahabharata 1.2.234

एतदखिलमाख्यातं भारतं पर्वसंग्रहात्अष्टादश समाजग्मुरक्षौहिण्यो युयुत्सयातन्महद्दारुणं युद्धमहान्यष्टादशाभवत्

etadakhilamākhyātaṃ bhārataṃ parvasaṃgrahātaṣṭādaśa samājagmurakṣauhiṇyo yuyutsayātanmahaddāruṇaṃ yuddhamahānyaṣṭādaśābhavat

Our plain-language meaning of this verse is waiting for scholar review.