2 211 667 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
39810007	8	25.2	old
10209648621180499905607	23	73.1	2023-01-07 06:22:56

ECM

Digits	B1	Curves
25	50000	92 / 280

Estimated T-Level: 21.6 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-09	Oliver Kruse	B2EA6EA6A52EED3B	1	0	1	3
Verified (Factored)	2017-11-20	kkmrkkblmbrbk	B2EA6EA6A52EED3B	1	1037318	1	3
Verified	2023-01-07	LordJulius	E4ADD6D9990FC0C4	2	63331	5	3

History

Date	User	Type	Result
2023-01-07	tomfr	CERT	PRP Certification Proof certified good
2023-01-07	LordJulius	C-PRP	M2211667/39810007/10209648621180499905607 : E4ADD6D9990FC0C4 PRP proof power = 7 PRP: Verified Proof certified good
2023-01-07	debrouxl	F-ECM	Factor: 10209648621180499905607 / (ECM curve 8, B1=50000, B2=5900000, Sigma=4522175871315324)
2017-11-20	kkmrkkblmbrbk	C-PRP	M2211667/39810007 : B2EA6EA6A52EED3B PRP: Verified (Factored) PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2211667/39810007 : B2EA6EA6A52EED3B PRP: Verified (Factored) PRP without proof (not generated)
2016-04-20	alpertron	NF-PM1	B1=500000, B2=15000000, E=12