1 969 757 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
7957089501426113	16	52.8	old
365326984500560808151	21	68.3	2021-07-16 12:06:38

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-05	Oliver Kruse	C204AF9A72BFF828	1	0	1	3
Verified (Factored)	2017-11-12	kkmrkkblmbrbk	C204AF9A72BFF828	1	722460	1	3
Verified	2021-07-16	/r/counting	90A051FE32F24F31	2	1236779	5	3

History

Date	User	Type	Result
2023-10-16	USAFSS	NF-PM1	B1=672000, B2=647447724
2022-08-12	USAFSS	NF-PM1	B1=132000, B2=134381520
2021-07-16	ANONYMOUS	CERT	PRP Certification Proof certified good
2021-07-16	/r/counting	C-PRP	M1969757/7957089501426113/365326984500560808151 : 90A051FE32F24F31 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-16	seatsea	F-ECM	Factor: 365326984500560808151 / (ECM curve 4, B1=50000, B2=6650000, Sigma=6781714808123667)
2017-11-12	kkmrkkblmbrbk	C-PRP	M1969757/7957089501426113 : C204AF9A72BFF828 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1969757/7957089501426113 : C204AF9A72BFF828 PRP: Verified (Factored) PRP without proof (not generated)