QVI SVNT AGGREG. DVOR. QVADR. 39 



Quia ergo hic numerus , etfi eftfbrmae 4^-4- 1, non eft 

 fumma duorum quadratorum > vi Prop. V. colligimu9 

 eum non effe numernm primum. Factores quidem eius 

 hinc alTignare non licet, interim tamen concludimus eurrs 

 faltem duos habere fadores formae ^m— 1 : qui , inue* 

 ftigatione inftituta , reperientur 467. 499. 



EXEMPLVM $. 



f 50. Explorare vtrum hic numerus ^6i6si prP 

 mus fit nec ne ? 



*!223?<S I 



262657 

 — 261121 



. 262657 j 



SOO 2 259081 1 



^_J.6i657 I 

 5O6 3 256036 



26i65 7 



50+ 2 ^254016 



1536 



ICH20 



5576 | 

 10080 1 



0621 



10020 



8641 



99SO , 



U656 



99 2G 



13656 1 



9S80 1 



129 2 — ; 166+1 1 



9820 1 



18621 

 97SO 



21576 

 9720 



2Z5S6 [ 



9680 1 



26+61 

 C620 



2S + 0I 

 958O 



31296 



9520 



33216 1 



9480 f 



3t'08i 1 

 . 942.0 \ 



3 798 1 



. . 9386 



4O8I6 

 -w_ 4*20 



+2696 1 

 92 8° \ 



922O 1 



47361 

 9t 80 



5©I36 

 PI20 



51976 I 

 9O8O | 



5+721 1 

 9020 I 



565+* 



8980 



59256 

 8920 



6IO56 1 

 888O ( 



63 741 I 



8820 | 



65521 



8780 



68I76 

 8 720 



69936 1 



868O 1 



72561 I 



8^20 1 



74301 



76896 

 8520 



7S616 1 

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9 7096 

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8II8I I 

 8+20 1 



*{JJ_ 



85416 

 8 3 20 



896OI 1 

 8220 1 



9126-1 



siso 



935 73 6 



8 120 



95Z76 



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97S 21 [ 



soio | 



99+ + i 



. 7980 



IOIS56 

 76*0 ■ 



163456 

 7880 



I058+I I 

 78 20 1 



IO7+21 

 7780 



IO9776 

 7720 



i 113 36 I 



76S0 ! 



I I366I j 

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1I520I 

 7580 



I 19016 

 «26+96 



_72 8 0_ 



* tZZ77S I 



Cum igituf hic vnicum quadratum occurrat 1664.1 zzz 1 29* 

 ka vt fit vnico modo 461657 -1:149* 4- 496* \ hiquer 



