Factor Info

ID 180915
Size 654 digits / 2171 bits
Status composite
Value 303317400361792778518510728161024880871881647795749512317927656433493354744801768442724468026946065016360692335406593504022323980149608629139077186014246746855898788431915759308229325229353575970289613888718074638539836902349211825546341678837458577804273171932466251568946149720022925741463499431149455624994425700574677275228498544418220416298337547022367242257238757267094476498463110912128195670803707463992103265424962034602899553620436948128840121464936693726929913196768409994748133658901569193553118930085056689964066980639365807893032824135520060195076480133139941992533707872229554392973576143606252627456919801603900788453543240770637801256721

Factorizations

Primary (ID: 179760) 142194470403744732352634210738000569142981953 (proven prime)
(ID: 180916) 2133116706300590626739887479364456545417410062093733990214136502559636773070138677525289790750258204727186004125107863037188577737081010611594854505342993409065614740588585946683312366060781591249843639610663507423104518357607986585120123965125105702018555416375846301253366256380039466289390659508821375680921484623094854678594815826000050566072574450293774861366689129215829606401165779752152051070648381677808297682954315650276439977546239643006969067595074310819258520973417698345456132787024527818022380191549398905820012305037992391747780297887311517420096035710084330087536937995874093972329210236091857 (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.