The number hundred they say is Paridfdha ( Pariurdha in Bd.P.) . A thousand is Paripadmaka. Thereafter the other numbers (each number is multiplied by ten to get the next number) are Ayuta, Niyuta, Prayuta, Arbuda, Nirbuda, Kharbuda , Kharva, Nikharva, Sahku, Padma, Samudra, (Antya), Madhyama, Pardrdha and Para . In calculation these are the eighteen digits.