Factor Info

ID 153397
Size 722 digits / 2398 bits
Status composite
Value 64687687897593888994928681141291983170070720865805876457296080151050033145859712349813309496776256403495227601302639020924817901790871628099462642848791567685931162200276038495015254094211556986648145461693330146791895793074011293237515263281293299100730906651865701363062850888238300741448313264929588468359496441834117715551137762778449140017968930610935012790596752919812263939344148010787419747238046048589066978298641548775000622474147231400174227475789213368865409865268472604683805199559953722075045577235586605279932296877292953305423917547660803950639818221657397905278826338791501403749893803088269707317663669564958672002354645931018402870290288969077790786048034856559636047618122343202071676493060315314410857

Factorizations

Primary (ID: 152140) 4082712449786591286481271 (proven prime)
(ID: 187491) 15844291924349264164102285644602730275658864846178304745493938089639624966778326100109453666149541927476428030186894156403801636543628014389972451984253920465508441006508946690576624157133207601667556758236199498798144681427876196938850326636584136306187039203080369713190277430160209806812436777094351747998093386392927853511301583957588199612069969370208703631922903618827808248446438839695920454637734410377176056463840814583918683850684764763608150323660544672160301752790677239266152323687035947775931969528991915516002380323593987016871352914983668260562886643510648282998438750288057409394505275186705573468631538721555291010499942359007752212940184392807284231091507008101586700125655156767 (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.