Factor Info

ID 147907
Size 477 digits / 1583 bits
Status composite
Value 291346338337211730497320316526874847617690621223905087136321112129419662672320375233128162903498996628550775807817852678453420646817447099406353904021626203943607193457567787682536329532623095300305137519241222984888806600846204220941161342394148547991888393849124442991904810022433410228286725684568542994310260129615310755277932913880534376084891619761692581698157589822864812439879886714951964349132811932344851797507861922621037297809319031002993536555966256704551110213381

Factorizations

Primary (ID: 147073) 687858517721621226917 (proven prime)
(ID: 147908) 423555616207576894860229966602586368628422917017981625542691554045758100977801804620433081403054513517906534799207228813476396849646124917784980575554874996214789153549851164868877862592783458501656089031421561276751034817337917018921477829742270404148323994526382284530971989889339427918693181858527871338804359523060160705139436096325347429976035918060883439783013404923383962291783069486184180807205616962088980067148410188603137543157787994233362855393 (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.