Four mathematical measurements which indicate relatively less or more strength of number; they are(i) innumerableth part less (ii) numerable part less (iii) numerable times less (iv) innumerable times less. Or (v) innumerableth part more (vi) numerableth part more (vii) numerable times more (viii) innumerable times more.
See - Ṣaṭsthānapatita.