Factor Info

ID 172855
Size 537 digits / 1783 bits
Status composite
Value 305859954039863344244742524899422370205561700386416387832715814193871683208157953442436389246682899119881509162745867137366913744346202513098099313678703669561146076361210237779700041951083056785980235530991925993143496876923548144752147446142013098127381050735043895203629899681145219468986236767207321818865114818945573019327180694847385456976120850286581341478109604377710758942917182894912177436307079410389810003769639915931008973707462960594574604195000128295928062639198957153438626461555031414040561534650284820788623623763119221

Factorizations

Primary (ID: 136497) 187613041036751523641931607764619717 (proven prime)
(ID: 172856) 1630270221886912592831585565090507698268454561965393062351462635550737147183766420279276164858987257821606775338385645011163495460998988447908973878015561265362057142911336472154992774418805273953391052841531724569809828133593350964717343877144464842957297479046768613255069435580569181558695909777776801235518896200637841379573210403355149399069574147903677675138456771437929505287591940883203743447349928883919631227420204498904768254053684238245910396795985909099256021040980143967267009521345833713 (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.