1 799 533 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
97174783	8	26.5	old
809678539727926097	18	59.5	2015-07-03 18:22:58
1631292031035756655817	22	70.5	2020-10-02 03:32:43

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	B1CB17205D215ED1	2	0	1	3
Verified (Factored)	2017-11-06	bayanne	B1CB17205D215ED1	2	109374	1	3
Verified	2020-10-02	tottenhoff	CF994A5250BDA714	3	521056	5	3
Verified	2020-10-03	kutens	CF994A5250BDA714	3	1512002	5	3

P-1 factors

Date	Factor	B1	B2
2015-07-03	809678539727926097	500000	15000000

History

Date	User	Type	Result
2020-10-03	Chun sung soo	CERT	PRP Certification Proof certified good
2020-10-03	kutens	C-PRP	M1799533/97174783/809678539727926097/1631292031035756655817 : CF994A5250BDA714 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-02	tottenhoff	C-PRP	M1799533/97174783/809678539727926097/1631292031035756655817 : CF994A5250BDA714 PRP: Verified PRP without proof (not generated)
2020-10-02	nordi	F-ECM	Factor: 1631292031035756655817 / (ECM curve 4, B1=50000, B2=5000000, Sigma=8044916619510649)
2017-11-06	bayanne	C-PRP	M1799533/97174783/809678539727926097 : B1CB17205D215ED1 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1799533/97174783/809678539727926097 : B1CB17205D215ED1 PRP: Verified PRP without proof (not generated)
2015-07-03	alpertron	F-PM1	Factor: 809678539727926097 / (P-1, B1=500000, B2=15000000, E=12)