Factor Info

ID 20160
Size 331 digits / 1099 bits
Status composite
Value 4928455120984689675200921752869454842091984976051261902558498757125051081645786990216603703157526445223669013688924173021565375042621662570448643434029400153401557922322647436903704433043293719702748756863226170749500799594347360875150030720107205839617383509950776693416154460787299651292602196897068483945395560922674789772540393

Factorizations

Primary (ID: 2156) 909090909090909090909090909091 (proven prime)
(ID: 20161) 5421300633083158642721013928155858196237875157792115991421533047017932402294586477639121920168577296505806456410052678131705054817233248181852502509619169663259990389736726930343112959381297092634049959856514476528512749844518691966679382344465075148594669991749186424523323399351170149422687497944323 (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.