Factor Info

ID 12539
Size 306 digits / 1016 bits
Status composite
Value 640937395315360847797916280671400770302079752309741842676495444673260413604125113835184969915966377354057454514173267098029538706553468024383065375910961262936948524472800880618829574056547973602992538059812577436747803757205164827680393130909427184643485396161449689089682517376254680265692659641130421899

Factorizations

Primary (ID: 4233) 6957596529882152968992225251835887181478451547013 (proven prime)
(ID: 12540) 92120517848742944759587741949810480145068802901619093522184499427323857151795987695637839664773884638934677553751118831669599402096924863560042540717517259838900450847816651551861675263261469722221603717451862590436038523531734958639577527269346534408726223 (proven prime)

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.