Factor Info

ID 153599
Size 771 digits / 2561 bits
Status composite
Value 516555977249477554609001317679774501910858826376456990405146680244231017686882632517655796955008044930141138215827612289128864253263419218534883350752044779689704639718368997413402978549411226029047112166909447015094863605072357563040479559040241990082908515131391742418357187216547290537954648301054695190818825238050870743763046024915199925733881521867861456132333497048898804651014336766251713978281018229922675924017128522227164845248863063176533548209440688010634578263977820933213250360844329421190838872234664632661114584544129434567620471371429818609531081656102075038460815811493673869756533244928020319762956505364947267184671120828095223118110313557157706662541362222457863949981838759544053023254291474175337465814770919962903335824265427740482121031197317711

Factorizations

Primary (ID: 152106) 758084147737104963101 (proven prime)
(ID: 153600) 681396621722544374611568274058472493098112766411601405703298784211327448319287901344332694465378347874580371859076358595961414001770224306168293234172289937912381793622692962677299839616495446353420470869755472975885499318177239136112003470029496020715010271017615363697985106179688102539002286250624774733216273179931109392289124999457256700931069168369485405472890334578446145933914702977844827106396847163139929497520720826598966525250012414858464204707080527120550214865987726591520117214221361263346676296832681368699390123373830822657935181972794942982265456638443458606705351348183917362770265441102293068607428990679817315260579780673773514069674661789753876413577312979684621278171481970958961826568969478024119210718974840609439814939563611 (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.