rHEOR. CIRCA BIVISORES NVMER. cet. 157 



Theorema 25. • 



Nnmeroriim in hac forma aa-^i^bb contentorum om- 

 nes diiiiforcs primi fiint vel Zy vel 19, vel continentur 

 in vna (equentium 



18 formiihrum 



76;;; -4- 25 

 75?« -4- 17 

 75^ + 45 



'j67}2-\-6l 



75;;;-j-35 

 7^w-l-39 

 75;«H-^3 



7^w4-55 



^6m-\- 5 

 7(J;;;-f-49 

 7(5;;/ -H 9 



7^7/; 4- 73 



"j^m 



^6m 

 ^6m 

 "]6m 



7 

 ^3 

 43 

 II 



47 ( 



vel harnm 9 

 38;;;-H i 

 3 8w;-l- 5 

 38;;;-i- 7 

 3 8 ;« -i- 9 

 3 8;;;-f- 11 

 38w-i-i7 

 3 8;« -1-23 

 3 8;;/ -4-25 

 3 8;;;-i-35 



Theorema 26. 



Omnes numeri primi , qui in vna harum forraularum con- 

 tinentur, funt vcl ipfi , vcl fiiltcm quatcr fumti numeri hii- 

 ius fbrmac aa-^-i^l/b. 



Theorema 27. 



NuUus numerus huius formae aa-^-i^bb diuidi poteft 

 per vllum numcrum , qui contincatur in aliqua fequcntium 

 9 formularum 



38;;;— X 



3 8w;— 5 



38/;/- 7 



39;;;- 9 



3 8 ;/; — 1 1 



V 3 38W 



