4i SOXmO PROBLEMATIS DlFFICllimT 



— «« contineri omnes niimeros qiuidratos , qnippe qui pro 

 deiint , (i II — t \ tiim vcro etiam in h;ic forma continai- 

 tur omnes numcri quadrati duplicati , poncndo tt~o. 

 Practcrea vero intiniti alii occmriiut numcii , qui vsquc ad 

 200 lunt lcqucntes :. 



1 , 2 



) " 1 



4-, 7, 8,9, 14-, KS', 17,18,23,25,28,. 

 31 , 3= , 3+, 3<^, 4' , +<J, 47 , 49, 5o, 5<J , <J2>. 

 <^3, 6+, (5S, 71 , 72, 73 , 79, 81, 82, 89, 92, 

 94 , 97 , 98 , 100 , 103 , 112 , 113 , 119 , 121 ,, 

 124., 12(5, 127, 128, i3<5, 137, 142, 144, I4<^, 

 151, 153, 158, i6i ^ i52 , 1(54, i<57, 169, t-iSy 

 3t78, 1S4, 18S, 191, 193, 194, 195, 199' 200.. 



$.2(5. Si numcri primi coufidercntur , qui occiir- 

 riHiL , ii non lolum omnes in hac forma Sw/-4-r ccmti- 

 ncntur , lcd etfam viciliim omnes numcri primi in hac 

 gcnirna form:i %m -¥■ ^ Gontenti ibi occurrunt , idcoqua 

 in forma ztt-~uu comprclicndiintiir. rractcrca vcro ho- 

 nnn numcrorum primorum dupla adluut , itcm corura 

 producla, tam pcr quosuis numcrob quadnuos , t]uam pcr 

 fc iplos ; ncc non horum produdlorum dupla. Qiia pro- 

 prietatc minvaducpia non dillicilc crit hos uumcros c]uo«- 

 vsque iibucrit continuarc. 



^. 27. Hinc porro colligitur numcros non primos in 

 forma itt — uu contcntos alios dinjforcs , qui quidcm intcc 

 fc £int. priir.i , non adnu*ttcrc , nifi qiii ipli fint niimcri 

 in cjdcm kjin^a ztt-uu contcnti. Qiiarc ciim produ- 

 ^iu gb{a~\-h Xa- b) cflc dcbcac niimtrus Ibi mac 2 / / 



