Factor Info

ID 21112
Size 372 digits / 1234 bits
Status composite
Value 257374135660703761567869298148006313259324881163211123525766677387049307536215169063816876754217984883258435733354573682493756395210997877745963363527541424736656874287496093505593746691275182321353723498532554811200618101559600570655656561158408245683909096294857288890887262655611742420009142586102995484757560962369470850929830659888191176456557694089533058156684617091

Factorizations

Primary (ID: 6915) 16650328910366149531471 (proven prime)
(ID: 21113) 15457600690426479287934008544552961045810950520564925574519516583994195766493136493009492333600111879024447952372406956384753739091282561586945544386967224867234036578784031410017827558434736486240113130591868202922387226411672472764875098715995347886687033978401522243639863817716608793014765792244379163579086523047652723699964565570803017439822221 (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.