24 s: 



fcm c.ipiVncIo ex primo et quarto oritiir faQor '^i , at vero 

 ex fccimcfo el tcrtio colijgilur alter fdflor 17; revcr.t iiutcm 

 cft 391 — 17. =3. 



5. 4- Contcmplcmur ctiam fcqucns cxcmpUnn ron 

 parnm memorabiic, quo m — <; ct « — -;, atquc in loimula 

 5 XX -»-3// nunicrus 512 duplici modo continetiu- cnm fit 

 primo 51-'— 5. i--f- 3- 13' et i I : zn •;. 4.* -H 3. 1--, undc 

 Ot -t- — —U. , cuius (luatuor valores funt 



i I » ^ 1. * 



I r — I. Ti p — T. 

 j. ^, II. — — j, 



II[.JL = ^; IV.±=1; 

 iinde fraOiones - ficnt: 



I r y. 1- I . ir •■ r V» I2f. 



*• 7 — rr^ — 15> *'• 7 — 3. 13 — 7' 



11] >• J. 3* — _1 . IV »■ — J *' — '^- 



111. - ^ j, _ ,.., l V . ^ _ ^ ^^ -^ , 



ergo formula ^^i-i ex primo ct quarto dal f.iHorcm R, ex 



fccundo vcro ct lertio faclortm 64. , quorum produQum uli- 

 (]uc cft 51?. 



§. 5. Vcrum idcm liic numcrus 512 infnpcr duo- 

 bus aliis modis in cadcm formula 5 x x -I- 3// conlii'Clur; 

 priori fcilicct modo rcj)ciiluf 



512 — 5. s" -H 3. S" , poftcrioii vcro modo 



512 r= 5. IC^-f- -. 2=, 



hinc crgo pltues ali« s faflorcs rcpcrire liccbit , id quod mi- 

 rum non cft , quia numcrus 512 pluiibus niodis in duos 

 faflorcs rcf)lvi potcft. Vcluti prinia (i poflicma refoiutio 

 d^iiL -^ ~ "* *:* undc liae quatuor tmciirunt liaflioncs: 



I. 



