Factor Info

ID 172908
Size 678 digits / 2251 bits
Status composite
Value 393159360500509132256293999502722855239382230260715778505603019511856586447500169080150048556716288046293241743095025771950468892612155413821692495326895262163299192482935499490217776809516313975259458556110451027686545767595803449217848269115035515109021513946167094401409487780802770251028772647662542233414232424168571697194150009085346345942503301168330135599381634317256240632728301100509062615714606158486907882176298879431282269454174546171093982570871319491164843287478745751417709158580575813813040230388538346438427809300358495412750859309673110731959694454818725331746220520597603852811493096708848549174130022657868286197948047670249731855280656266147460285714160781

Factorizations

Primary (ID: 171893) 129117194465801051321818746638414043851 (proven prime)
(ID: 172909) 3044980663707375315535351243323843952824056406886869483090367502865964175836309429261642204883197598803365763455007812201263683023345528666343685692811025678335345157267303921462603295125896580347828181076576904160813541671052332718590856385102981775211842145333529851435969586590621949892602904598637714345279896462967441963646440024288179646116631746079360846656229213071463680761245703427575108290184527819480332725980372403436183509355017734057292845011926297486705221070612087853708822116781863802253975007787477310344786787481756005737938750678765109896893306129356002083438669201455403675606253123612115329652729136861389527763911431 (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.