Factor Info

ID 21554
Size 429 digits / 1423 bits
Status composite
Value 157253344707372990614214280269149252238433183818368932513777466322220291464417718317012682406745292274662353494265710887007626449098972372378086019261320335150918005232560630284154835080192169248143348973015016144157307017663263415894879672010208994439302305087121509385050688043665385300664910558596544827242375698757652995357369749644893457265150479866240497711694364260666881791483145135289672387048151213712297188477654808817

Factorizations

Primary (ID: 6711) 37007700327977836913 (proven prime)
(ID: 21555) 4249206065595202528735926983416753703350845423759827562891083926299827244131823023345719798379370039888944323691859393030690488086317135812914474090959051022603037778084442674502809146194232220248399095840478633885708892182848350320466898910038320071441800114983862344910081854800617252014783932683131334526640573643298148201778642371372273150200187977091105149992150261529547096559771333237578306619463438209 (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.