Factor Info

ID 163941
Size 306 digits / 1016 bits
Status composite
Value 601591842439792195125164604033210430502847124265416945142415102411689919602002497634666173629300057158492041509543200506810823726200083422335471646611750054696379773781647753946184510283879389108068243478322292412370291373717584376491049804834305497261600774316217323898521540529481030046677613977133182551

Factorizations

Primary (ID: 163942) 31876884555721491076751 (proven prime)
(ID: 163943) 18872353770588731872464402600380106570385667879270244446096941956132151239042072806162902318500762555338924399648789257848665334174824215112932339870368867474109953899420637459843024594092314356980611303011031498530665025003461094763474959733927131916883253255667224248638007109455801 (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.