Factor Info

ID 42989
Size 281 digits / 932 bits
Status composite
Value 18180421993186454198510522025516260337159828877012195354511518097142265463247343608213449705124043363143707273125345777453629578801977495680092248095621754426167519844720893286908423449791578641198510129500015545337187956454679910369079390133074638613542359656346615765018610869253

Factorizations

Primary (ID: 47) 128955073914024460192651484843195641 (proven prime)
(ID: 46897) 140982603021169291847334952593035746955710480922876333086823818759717027312459643946359746004556188618266620670538921221327491615277133848197914849013862299489398217760470710814803883126547161543219214143830104973315661572992822787696221901889133 (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.