Factor Info

ID 155399
Size 490 digits / 1626 bits
Status composite
Value 2179286473521148060515513765499665234275800354623396066511240436353463365682914795910149474920444076396560643976991173953212764325283090065850172495184970038645578933811704430938944353714719155060952932260680688775415560936482391954074868817943979348671503790102849660231870703568613838026021586863654072290751875668243468988027532670919744606310519997235034645012989553732966476943996821987111438435336699686867230025232498237021571692459044559413902521598295672176978370085348171967936829

Factorizations

Primary (ID: 155400) 260288089454132594471 (proven prime)
(ID: 155401) 8372593913503588188101937695923466922082940341710071741631382369766686127487460073097487620367671584262105994726397512863954439409994910830709634011445318510033907584234659057058176255052420579915166814241475299859666921280247867136090825998061540562735463310518939520838673465333288790560949839249494763989328881744718336931681284958863350799993149095952417696080553192915456410440577731379107482355811179051892167522929496240259515611015726396291625413822530733890299 (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.