Factor Info

ID 152742
Size 497 digits / 1649 bits
Status composite
Value 21255182715067877443915343189126777668606760298668381749819935517206593843649586954709164068137813905928539130085153832003499494935692375543012842245673917398401034482758620689655172413793103448275862068965517241379310344827586206896551724137931034482758620689655172413793103448275862068965517241379310344827586206896551724137931034482758620689655172413793103448275862068965517241379310344827586206896551724137931034482758620689655172413793103448275862068965517241379310344827586206896551724137931

Factorizations

Primary (ID: 152743) 19463078777887561690871 (proven prime)
(ID: 152744) 1092077104430999120471014058384582707636590899047394925275718602932579207971992533731314528095549560574566734008529278804791899676941902310857717019053801049035892164552208997911368502449375289442077123438375848047668706806076799206808053209579470591346131262527283244032675269453453884360021371132001911793524400362441517703766424815295922356701286330237606814324484469492789026796472648344891113870717741047370277236605213321102400013299900123336750435590210403752111238861 (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.