Factor Info

ID 137940
Size 639 digits / 2121 bits
Status composite
Value 153213314021925558799862348953411512965675638331119094520304223669926582437895095690401392661596305154746146445133254924564607108311542711443353488062164000784652304802480498097898940260828581165821714010797029415646758607230361967805270030610930310095340522679967986170458232240013902719123118531543020565748635934934603661539396864676056916171411441632760528219329578800383908792853619366957665885776580246875758470947601080534174462634373502326828200660651534859464709788772168344064721747093528867083274682093093617264648458075905454083445108035438317136627676679791912420558777566298153386650552873521210762324194303850029050723481167

Factorizations

Primary (ID: 136542) 63202741390186172644453 (proven prime)
(ID: 137941) 2424156146583157684127251243382917054483372123004691263004210322614429621924679097515194319428372630071291955351599912481558492524756094370026493140449965907040933021580015278276443399382358864073049718614357474074808895522631212344873472683714041610942914523594373848263506897196156248533518006499346809666468483198206861215087665588613090452634823816437950498335268170640996981338857480574948530664237078594505419338297578964245682333361715892976376898696204551502850856000578106645868061731594009201646915700361056690644302376595230714652977511279811327455180430560888320305927189619234926413831391200610213157539 (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.