2 180 527 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
8712196993574131372543009	25	82.8	2022-06-02 14:54:31

ECM

Digits	B1	Curves
25	50000	203 / 280

Estimated T-Level: 23.6 ⓘ

TF below 2^73 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		John Lloyd	2BB8A2BE79F288DD	0
Verified (Factored)	1999-02-07	Goede Schueler/Christoph Steinbeck	2BB8A2BE79F288DD	1748788
Verified (Factored)	2018-04-13	kkmrkkblmbrbk	2BB8A2BE79F288DD	923027

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-06-07	ATH	1BC3EA93C91DCD1D	1	433558	5	3

History

Date	User	Type	Result
2022-06-07	Jason Lynch	CERT	PRP Certification Proof certified good
2022-06-07	ATH	C-PRP	M2180527/8712196993574131372543009 : 1BC3EA93C91DCD1D PRP proof power = 7 PRP: Verified Proof certified good
2022-06-02	daveward2005	F-ECM	Factor: 8712196993574131372543009 / (ECM curve 7, B1=50000, B2=5000000, Sigma=7094217672360183)
2021-07-15	TJAOI	NF	no factor from 2^68 to 2^69
2019-04-22	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-13	kkmrkkblmbrbk	C-LL	2BB8A2BE79F288DD
2018-01-22	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-11-24	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-01-15	ramgeis	NF	no factor from 2^65 to 2^66
2016-01-04	Joss	NF-PM1	B1=443545, B2=4435450, E=6
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=148870
2014-06-26	-Anonymous-	NF-PM1	B1=119435
2013-09-13	BloodIce	NF	no factor from 2^62 to 2^63
2011-01-14	markr	NF-PM1	B1=90000, B2=1620000, E=6
2009-01-07	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61