Factor Info

ID 181809
Size 890 digits / 2955 bits
Status composite
Value 19220151906321603049320605150113961088738003051035000046533708371563258624690823044589266428822428720190273933350569319125200523650499362828725729914233397881665669000804337846438910160808899985759292878878241161425281435675950341505864186023573530182995009376758650032047945395573799747494766941069497358910816142203885143157769465441024007841123983079358583476689924858959535936415407579654847884559288027673366821500882120279567269317340614696516916304714608541557322736689416358864194854949610615718934261736004290468959921665322983277954251063081097091937628479098034579262866738352582495693735419009357176204108616549629198048624098467043972760439730841478996275798492589800768881256091092722497088413454031263264659751160580883092139742824272820078469434391759478372034984245296849011016770413747979354828848467327463859548556827184268469314237257757418668313107627175267592819787131

Factorizations

Primary (ID: 12398) 2617995921130540203511836948324558207460638524770877665327216483793459 (proven prime)
(ID: 181810) 7341551509378090975716900450382242047990316543728810629207266457280965553853873722374488372257175221912980584373950054174234393776234510568944759453970637471496504967390634790135420258771803901895377825366554730781014061017127990788721054208544007860518142362256619231400237415358196695569869017496066281265960774038071109142832538019995911826018208263296871396065675169461201254603824909548381943557738889304877579438597117882692764390647752212026859391486903769209635950918047753950935114335168350369330984489661004732724073701832413457456328344414032762073698950745544581643522215252270869807871529119574862609236641440639495945416136882995446116047850597771433873448548116779919536837257890133380446338253689906817478431559459704616390525744269527856428702515970501372509356814041800191673772102168686935848789594009 (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.