Factor Info

ID 197021
Size 755 digits / 2506 bits
Status composite
Value 19902397881063799468018068017013843617095254305794077792655788328434578731728627520144828557209582870940479907622290219424945109219938659173535256805071988430683907809113057323628193640092522847846810563364057876073385507410070164374210496057199261351567161660310691360039213036359556849853601868891070653075479620325330322092078085437470459440211444117948596997604845714382765088780166081692159096970718135515459196284502786739416451667797104884333461231675054290956584095671138269839215742388070207860570718627725806127558116349401493202551929691319728756541850504183327852473826029696732862937327683313614214362524808134656906675238007140689994235258267447799801217294616980368256193883792738132969567396895418945195278718746205530612672834786542821639

Factorizations

Primary (ID: 30646) 265463184404902972803443680488559248359 (proven prime)
(ID: 197022) 74972346638874313493834947864179639828567050421172320686024871104528500417845378726896952954575800014968550059198274887788069328103015937006818118154673325899729157988527136163741094894661965625546583917978580539432023134178250525644639629904993145261778533647593522997227731879624839049348543219035343171132285514578491460065403135497386598118363004346550251310984257755390218408300867890839989225648259722115981214481767424083054144774687866132722071642526608343769348610929797228721442329507880472041527354577858624236826051289873382309724584337487067185354576599851689571226243952151671632425772167666578505943351057191959884198020893221065168660640453567150013572279538838250871520507031740841202590026946237921 (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.