Factor Info

ID 21167
Size 478 digits / 1586 bits
Status composite
Value 1840307332374589591298664126736833794077581873982096366191309308145673382712962062037344021109196281364110602945969354640257295726842879551064178482733850767882559872605971309273413162752130995412380968631974168198650880185328858978682197719355612913796136703509973867214396892123195728582726845289268865219582733833768339293426096271851048456968644263267862954530073029137179491033626445683198737106361647006580002817814930377446367888238076415376227134861967456030042281385221

Factorizations

Primary (ID: 29505) 978138181410195378169072018321 (proven prime)
(ID: 29506) 1881439010714613955752063944985351025628544978474345912967012199610913204028482668242190439491798087572978374170393477023708928205200816775830938981188948544879848187206405589433805032626528756728422386309971097421407251037319351282204422718933902293523245971726685589728968591796545876261374713993741813578686768745465561638843508644275784918681716048405230179658852052838248180403113928396620344650450609025837076809609949352331280142904711118901 (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.