And therfore is. 6. a perfecte nomber.
28. Likewaies. 28. hath for his halfe. 14. for his quarter. 7. for his seuenth parte. 4. and for his fowertenth parte. 2. and for his. 28. parte. 1. all whiche put together, that is. 1. 2. 4. 7. and. 14. doe make. 28. of this sort there are very fewe more in cōparisō. And for an exāple, I sett here, as many as are vnder. 6000000000. and thei are these. 6. 28. 496. 8128. 130816. 2096128. 33550336. 536854528.
Nombers imperfecte. But now of the contrary kind, imperfecte nombers be suche, whose partes added together, doe make either more or lesse, then the whole nomber it self: whose partes thei bee.
Nombers superfluouse. And if the partes make more then the whole nomber, then is that nōber called superfluouse, or abundaunt. As 12. whose partes are. 1. 2. 3. 5. &. 6. whiche make 16.
So. 20. hath for his partes. 1. 2. 4. 5. 10. whiche make. 22. Likewaies. 120. hath these partes.
| 1. | 2. | 3. | 4. | 5. | 6. | 8. | 10. | whiche make 240. |
| 60. | 40. | 30. | 24. | 20. | 15. | 12. |
Nombers Diminute. And if the partes make lesse then the whole nomber, whose partes thei be, then is that nomber called Diminute, or Defectiue. As. 8. hath these partes. 1. 2. 4. whiche make but. 7.
So. 16. hath these partes. 8. 4. 2. 1. and thei make onely. 15.
Likewaies. 32. whose partes are. 1. 2. 4. 8. 16. and make but. 31.
Scholar. In all these nombers I note that you reken one, for a parte of eche one of theim: whiche before I thought you had denied.
Master. 1. canne neither multiplie nor deuide, and therfore compoundeth no nomber. But one maie increase addition, and therefore where partes be added together, there. 1. maie well be called a parte.
And this shall suffice for the diuision of euen nom-bers
