2 564 123 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
230771071	9	27.8	old
5202487617343	13	42.2	2008-07-14 20:25:03
384500220093612593	18	58.4	2015-09-03 11:07:52
1194762440890392890116247	25	80.0	2024-03-16 23:26:34

ECM

Digits	B1	Curves
25	50000	52 / 280

Estimated T-Level: 20.9 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status		Date	User	Residue	Number of known factors	Shift	Type	Base
composite	Verified (Factored)	2017-09-30	alpertron	F3B4CB78EEBE2CA9	3	0	1	3
composite	Verified (Factored)	2017-11-11	Oliver Kruse	F3B4CB78EEBE2CA9	3	281114	1	3
composite	Verified	2024-03-16	Anton Tsvetkov	12B2EE3AC319B93E	4	2330628	5	3

History

Date	User	Type	Result
2024-03-17	Perig	CERT	PRP Certification Proof certified good
2024-03-16	Anton Tsvetkov	C-PRP	M2564123/230771071/5202487617343/384500220093612593/1194762440890392890116247 : 12B2EE3AC319B93E PRP proof power = 7 PRP: Verified Proof certified good
2024-03-16	Anton Tsvetkov	F-ECM	Factor: 1194762440890392890116247 / (ECM curve 39, B1=50000, B2=11242140, Edwards Sigma=2930397690598103)
2022-08-29	USAFSS	NF-PM1	B1=480000, B2=446264910
2017-11-11	Oliver Kruse	C-PRP	M2564123/230771071/5202487617343/384500220093612593 : F3B4CB78EEBE2CA9 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2564123/230771071/384500220093612593/5202487617343 : F3B4CB78EEBE2CA9 PRP: Verified (Factored) PRP without proof (not generated)
2015-09-03	TJAOI	F	Factor: 384500220093612593 / TF: 58-59
2008-07-14	George Woltman	F-ECM	Factor: 5202487617343