Factor Info

ID 129349
Size 747 digits / 2481 bits
Status composite
Value 640825769018564033288284873662564904571185037702751470297755462674768239395316861390746015510049794692131969212147053018251698127367884213573908430273815616508756942184041759958552923881260591558137141483003566441591571934364804383054722312535509512364311450164286692785120127185727648009735045515588940158050494644867322677226220214354873725583044847350334462138528488524637438959054312275464522118562890183379117812075661071890939076412305028452522958361263248717809646516328099187106654736107894106846482246505332839016119375681162196241730195012242946308861244162791558889559881747748569396099748981367510894462230203695421781487753728768349350773441246511147543234137279350050400685752290070237029851925980587492695796920506601841333218296959

Factorizations

Primary (ID: 49105) 171305787985913716076467123408604375659039234375754594232076579681991221605630765456957526423581480321284355836640470216266306328165284457360658302155337864524949497989536062826258630824894571307563559721 (proven prime)
(ID: 129351) 3740829638933498392312751904677809107497785495712202233050872981930628000253800863267962297754846079817959928571014089275269613964374921839194713828767801850605270848020464695962620597922418704862286014121495015144722756654202872455347954189236135098555313087380707605092434745038880161845899087845002118660908922490668967618091775091657729106871199073089528606421660531718446761840578933597426680886757896053532524664001619578628473892237877388053712229794625904548952497822029629851820310493456129939551036952018711132520423587236157880799079 (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.