Factor Info

ID 180779
Size 642 digits / 2131 bits
Status composite
Value 161480563403123261785800441820729267285915372841572894570235224251385410383787236382267649497479661405375493699028564223288773055530229284358609639420015932397123979454192377554611400502399694967835906416767421980871669378700221364687685761008881514586141973657036174981751287771426000435100654292717214808544882332250022145976946101067241741332968670114042411982499164722165167467651842038421201116093386259684297529180200025736451941001725347070820034353037458718871031331321896581627718348152115140059042411562263500392121918744913843613529361380528118391090037562906754366361703062273181904166367372815069175762673054250902334743826289257

Factorizations

Primary (ID: 143271) 157815197997066217516003977811417382081837552135921 (proven prime)
(ID: 180780) 1023225680749234198376492553711744286633880960927789664143178408449946043664703792624377437335825410281312642316317818837942567907823627607583400180285026799331502372114628046552290552941424851756959321624398650157136355239283386881327012009655372471229587130321231826851340435847640859371487976847244896500480196034666106396703679138297703741939544090372906457227514251405619180164233955651019331203292849026199903667391308125546498589952917335564436469169546746435613429618364667533495967839932299984730702068651419473516871601529835851948639333575355745673986727816238418712304013734906617 (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.