Factor Info

ID 196490
Size 647 digits / 2148 bits
Status composite
Value 21785005986706165854000721227185177460431696580368996298699625931977146898035979750669550630896772093016135828938826276384812339912706055669372839678065041357852546701334583161799999313921797985434233192470065044526639759171923564078977984161371318779454478666798642697606681432700552262266812622409447093071201780497614894026906727483982914405040032391783272789431986053217167410965907762782492579549887112569305903850361684164263302648281732915063810380316591088318971306259864944939635659299832130175623121653467550717788005735292317855005565419721037076560144195649316555904039111761204022099944200925313979785135406974679465258174702153573751

Factorizations

Primary (ID: 195348) 177621621130562755751621655193911690486781899915500743321772911 (proven prime)
(ID: 196491) 122648390708543606718867178141045357894689875878852362459878176115111884142970173941503856620158997882939302111146725193844667484569169927545609619978325910541595044207428649460543248840634243552243196495035857041403818672494701271633127455491480642867107422168112039494236628057275255164001857536854269692486763089166010172709662897569327691490243502733897644625858821692315304786367348519319989786400064323860273367933836003767662166237046459494650724532252544066105740537138959791552550349876704158516728739338341030895874781431841543110287073484827656205250910126437919581558520441 (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.