1 962 403 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
10361487841	11	33.3	old
554239466175260665439	21	68.9	2021-03-19 06:53:47
11183188205523645595841	23	73.2	2021-05-31 18:45:58
5512480544744839541857259299873	31	102.1	2022-10-30 22:18:23

ECM

Digits	B1	Curves
25	50000	276 / 280

Estimated T-Level: 24.9 ⓘ

TF below 2^78 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	40F04ACB3AE2B2A8	1	0	1	3
Verified (Factored)	2017-11-12	kkmrkkblmbrbk	40F04ACB3AE2B2A8	1	937675	1	3
Verified (Factored)	2021-03-21	Joe S.	244591F84D16E781	2	524713	5	3
Verified (Factored)	2021-06-02	kutens	244591F84D16E781	3	155562	5	3
Verified	2022-10-30	Kevin_9611	244591F84D16E781	4	570895	5	3

P-1 factors

Date	Factor	B1	B2
2022-10-30	5512480544744839541857259299873	650000	730452492

History

Date	User	Type	Result
2022-10-31	iwes	CERT	PRP Certification Proof certified good
2022-10-30	Kevin_9611	C-PRP	M1962403/10361487841/554239466175260665439/11183188205523645595841/5512480544744839541857259299873 : 244591F84D16E781 PRP proof power = 7 PRP: Verified Proof certified good
2022-10-30	USAFSS	F-PM1	Factor: 5512480544744839541857259299873 / (P-1, B1=650000, B2=730452492)
2022-08-12	USAFSS	NF-PM1	B1=132000, B2=134381520
2021-06-02	John Airey	CERT	PRP Certification Proof certified good
2021-06-02	kutens	C-PRP	M1962403/10361487841/554239466175260665439/11183188205523645595841 : 244591F84D16E781 PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2021-05-31	_p95holder_	F-ECM	Factor: 11183188205523645595841 / (ECM curve 4, B1=50000, B2=5000000)
2021-03-21	Ben Delo	CERT	PRP Certification Proof certified good
2021-03-21	Joe S.	C-PRP	M1962403/10361487841/554239466175260665439 : 244591F84D16E781 PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2021-03-19	_p95holder_	F-ECM	Factor: 554239466175260665439 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-12	kkmrkkblmbrbk	C-PRP	M1962403/10361487841 : 40F04ACB3AE2B2A8 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1962403/10361487841 : 40F04ACB3AE2B2A8 PRP: Verified (Factored) PRP without proof (not generated)