Factor Info

ID 159471
Size 420 digits / 1395 bits
Status composite
Value 671998201087821347993645942069782746977034856097325817953638866571480834184044020038023376738888339413811497174695638013399574568156274886864007496667491986124061040751958077981481338262639381697072505764652845409230912796862145864883611286626253751098107569484095989628839794275492080778125546185897308146805159570042875817175968766476960967519658799581348860956835632835578108126833189180471501276356833049421599948499

Factorizations

Primary (ID: 158900) 21373531350655016111130353 (proven prime)
(ID: 159472) 31440672580632175267965606194101677390026227162060165247195876295565412447261222136226520200433434218063226739137725026987230850482033658798230215291844590917147557066609133075182614615172054595146789611110687751249155102735350160890259982560618381857605174623513498364564154537478036029393320072098536937054223790931277519948085558789964589747028468055775516283010454478519709799285526771796483 (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.