Factor Info

ID 15231
Size 282 digits / 937 bits
Status composite
Value 722792978763499583898887319769998046772076280801205682645494044673067725889421227907622798985538433126378531411847593855639776533413640205629601709054252577733208827798218171316504395086597264289802463509881488891777748566506902096508669598087873293827760858482846773231239451940391

Factorizations

Primary (ID: 15232) 42156379589779912226383108151000450094080783333678881 (proven prime)
(ID: 15233) 17145518324792964102221630660356290498224038584169353017564701132241027497315201533398269304716768895805802631554067214486610023278087987209156941706426939448641681952013368941689800094109382444884674402827522847290655579387376711 (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.