— 366 — 



{[uono, distiate in dieci gruppi, ogauno di due soluzioni,divi$ibili per lo stessu 

 prodotto di tre fattori pi'imi della z, diverso per ogai jjriippo (XXI) : cioe 



17.37.29.33, 17.37.29.63, 13.37.29.13, 13.37.29.77, 



13.17.29.57, 13.17.29.153, 13.17.37.17, 13.17.37.143, 



X,=-.< 5.37.29.21, 5.37.29.171, 5.17.29.31, 5.17.29.319, 



5. 17. 37. 135 , 5. 17. 37. 345 , 5. 13. 29. 429 , 5. 13. 20. 621 , 



5.13.37.155, 5.13.37.475, 5.13:17.495, 5. 13. 17. 975 ^ 



17.37.29.56, 17.37.29,16, 13.37.29.84, 13.37.29.36, 



13.17.29.176, 13.17.29.104, 13.17.37.144, 13.17.37.24, 



Y,= < 5. 37. 29. 220, 5. 37. 29. 140 , 5. 17. 29. 480, 5. 17. 29. 360 , 



5. 17. 37. 352 , 5. 17. 37, 152 , 5. 13. 29. 460 , 5. 13. 29. 100 , 



5. 13. 37.468, 5. 13. 37. 132 , 5. 13. 17. 952 , 5. 13. 17. 448 . 

 Venendo alle quaraota soluzioni di terza specie, abbiamo : 



^ 5.13.17, 5.13.37, 5.13.29, 5.17.37, 5.17.29, 



\ 5.37.29, 13.17.37, 13.17.29, 13.37.29, 17.37.29; 

 qiiindi, mediante le formule {k},), sara 



24' 

 17' 

 6' 

 36' 

 23' 

 39' 

 49' 

 28' 

 50" 

 95' 



23' 

 46' 

 43' 

 43' 

 44' 



31' 

 31' 



32' _i- 9' = 33' -4- 



12' 



38' == 47' -+- 14' = 49' -H 2' 



34' -+- 27' = 38 •• + 21' = 42'- -+- 11' 



48' -f- 29' = 52' -(- 21' = 56' -+■ 3' 



47' ■+- 16' = 41' H- 28' = 49' -f- 8' 



62' = 71' -^ 18' 

 76' =. 71' -I- 56' 

 75' = 72' ■+■ 35' 



57' 

 79' 

 60' 



46' 

 44' 

 53' 



■ 107' =.110' ■+- 43' = 82' 4- 85' 

 . 96' =^135' 4- 4' =121' -+- 00' 



. 73' 

 » 89^ 

 . 80' 

 .118' 

 ■ 129' 



6' 



16' 



3' 



")' 



40' 



