Exponent Range: to+ above minimum exponent Output results in HTML format Output results in text-only format Output results in plain-text format Show full details (current assignment, history, LL residues) Include full ECM history (every "NF-ECM" result, slow) Include ancient history logs (1997-2007, slow) Include expired assignments Show software version in historyGet statusMnStatusDetails153099851Composite: 1 known prime factor FactoredFactorDigitsBitsDate721634624060403608958232375.92024-08-07 07:41:13 HistoryDateUserTypeResult2025-08-25Ryan PropperNFno factor from 2^76 to 2^772025-06-06GregFFactor: 72163462406040360895823 / TF: 75-762024-08-07SRBaseFFactor: 72163462406040360895823 / TF: 75-76*2023-02-14SRBaseNFno factor from 2^74 to 2^752021-11-14SRBaseNFno factor from 2^73 to 2^742017-05-29nranksNFno factor from 2^72 to 2^732017-05-29nranksNFno factor from 2^71 to 2^722017-05-29nranksNFno factor from 2^70 to 2^712017-05-23La GüiraNFno factor from 2^69 to 2^702015-02-17mikrNFno factor from 2^68 to 2^692015-02-17mikrNFno factor from 2^66 to 2^682013-01-29RichardNFno factor from 2^65 to 2^662011-01-23RichardNFno factor from 2^64 to 2^652010-06-24sasaki3NFno factor from 2^63 to 2^64