Factor Info

ID 20520
Size 325 digits / 1078 bits
Status composite
Value 2193381440892251500218097053404845910020637057172337451837980994516889868150124430658354933619846491981210203158397162728419014725647817037258883844222558754179406982713839354165476229698224464414158844226265034649093940792408308454243439997268918851492448317796988934763791011520624788270105507007611671191711550869489455527

Factorizations

Primary (ID: 28686) 72214204545848874937749773069 (proven prime)
(ID: 28687) 30373268731357018558633342008227848335678246466676598471952363223802072693518747053368404212124785163076859400490048447102012798684359230478873156539006028887314998197208649824688320980166887584804331446623862554634987833894134199834492345175196743994642367490429263459238616127139425917579633283 (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.