Factor Info

ID 142578
Size 918 digits / 3049 bits
Status composite
Value 644206900713591559332813786965275525181753202170427626267359730927634339067495178007167017800906656498861000981460447506710861455232802420266372253033718224622925046885439770302573463899368998018792862241040183905594337959825131122300144351630914166148156390232129312300235887218678642584454305790459641978070457147925116285849148256123659273373505485447752800143309636114694677548962328360637841835592404138448197392584669234148111926654838589108329787012848358666352331055857473021364350345007263316039177075948005739593701352636944651279797037314930639695060672689401217627288614853920960261528800695718811549825181194495012411786562662727582915708687836377483299005036280219942575356161408889492975115101539084765684752876660216966385312752393161802486017502481794106835718799745559691719504091420178021772183023647706022014314530738226796725687067007673507728272103692974550098594360004232056309916790987908746331

Factorizations

Primary (ID: 7394) 68795069664507129341 (proven prime)
(ID: 142579) 9364143445964876920428030599973094440875207253993134337839861353532375991515456984019626829944086843355762506256318534750871158876809296260577875681972324926653140574180730141161774470733717002157101682955507172588057991141767295714888398624816758331715318565559382400867259514624507662426411862542450659378472078183452891913522945712341304577096954796253076700196871597407346779563943189726298974715216129198567769246116025027396199310187177886862266131717803984244653005361630092991973823917406868670609687082738061938380250185169965734653444664893584160071608347854526047464619226984069548279837614966114991163974985312049250322636877256726547367759145098053379000132893734818995560920021323992094843550611227963744172024394301267686024896389529781549061707264047818030894280290368808917253807066469957068126081505750518694545485073996388832053991509464782207763208253697264098359545861314414391 (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.