Factor Info

ID 21509
Size 574 digits / 1907 bits
Status composite
Value 6270557942986583384871471482444969548877589788867545735560892077991367382705079880159472068296963888390972351753113098251259269940350520682417195950376897059479720087218044769653783865172867981592049292676515873169845991336735461821263961309502694369652243473368913911212330100446185157824403832357070249278010816093717008613491040258183984672172989140703558590842811533997593491652072429274812591204249162600441075131752699668490421583085618780148221281688973972940064372283689880062315778766859524606474258866223741127842588505949234367068504085463202842988648434067596313

Factorizations

Primary (ID: 7280) 1567744952609398205028484317631 (proven prime)
(ID: 21510) 3999730908110845920855991652154016161165853464079688177232761179692162941482882184391664870036589100329345775512864375214887091848735473933060036931137615393963740687852049960443885341790178532095530799553592229927502683349057999308650338141736561264645024236236180635127100536526125963163422826357092022692291537417180668154310416811472698109022212353025989842229123785625181243961070166097211281367038284056185629421090827773680426736346213216560623843057313380943466681244401589088561183690746011107895210777331714920614488668504949836406823 (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.