Factor Info

ID 163943
Size 284 digits / 942 bits
Status composite
Value 18872353770588731872464402600380106570385667879270244446096941956132151239042072806162902318500762555338924399648789257848665334174824215112932339870368867474109953899420637459843024594092314356980611303011031498530665025003461094763474959733927131916883253255667224248638007109455801

Factorizations

Primary (ID: 163520) 3900350408237898825485900551 (proven prime)
(ID: 195605) 4838630326836425974973466474204876112732360295302080920700838708342201776604534366505607299074149510413488498040954489299160723064402319898785573284476589247589317694871442493142548183395564239022635059736810640609108802758888585744563098239426065625042751 (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.