Factor Info

ID 139153
Size 254 digits / 842 bits
Status composite
Value 15619931932321894738456520876917342489573433718164294678793989422286572163398368747665328152419592884448194371444164809284536045601707569076013893212606418540886232264915094468814470303822043833214551828674390130366772273810670387926674334154096771158443

Factorizations

Primary (ID: 139154) 978604952927952381405478537 (proven prime)
(ID: 139155) 15961427423382229267830508499901224194225065306855636927773713311982249334311752703408642883060336809995744669569076011425632140053682927539909636931563722053019586229706442408223728141633956412196147041335728504257676113371539 (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.