Factor Info

ID 155535
Size 542 digits / 1799 bits
Status composite
Value 19500872191056391651552554615991154253326153632269291873845010684365775702051515057947338637014300341246470348694446841890981521403510917397157592643191748531663817344841467767610484050947825746527223863022031020599400219876377666713820398718788897721463189518648965866478250496678945905103693398354312991651244987581330341682198320218880491114883002400839432375625569253880997798789985077548686972837306878230119971715330720143632301198604994301545225579475637152613472717117733905321045221995577383746207592747078729207455140848026761906981

Factorizations

Primary (ID: 154956) 355802443222817085661 (proven prime)
(ID: 155536) 54808145819404057126133396963062874923808366817318773037097959707419160365560428446922059434776299814156661961511274707967936970519666572934206115545284326131454178701658271877989019662691633097999411221572510121058144564537955095815475654979413944205141479371781835406542368262197660841243266827645662582413020882492101932043715137927685376883619373451870720329711006794514916342162389081726572458755787837318498129839971306231899915414998113764336734755623911659652611467170340082623324389392105145490629418829410022121 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.