2 715 523 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
34197317087201105438527	23	74.9	2021-02-16 13:52:10

ECM

Digits	B1	Curves
25	50000	80 / 280

Estimated T-Level: 21.4 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	7E1ED4EA273134C3	0
Verified (Factored)	1999-04-23	John Halpin	7E1ED4EA273134C3	1726986
Verified (Factored)	2018-08-04	kkmrkkblmbrbk	7E1ED4EA273134C3	1955270

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-02-16	mrh	B5927AF314DAF322	1	496713	5	3

History

Date	User	Type	Result
2021-02-16	Chad Steenerson	CERT	PRP Certification Proof certified good
2021-02-16	mrh	C-PRP	M2715523/34197317087201105438527 : B5927AF314DAF322 PRP proof power = 7 PRP: Verified Proof certified good
2021-02-16	daveward2005	F-ECM	Factor: 34197317087201105438527 / (ECM curve 3, B1=50000, B2=5000000, Sigma=8866086225102093)
2021-02-15	Numberwang	NF-PM1	B1=145000, B2=4570000, E=6
2019-02-11	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-04	kkmrkkblmbrbk	C-LL	7E1ED4EA273134C3
2017-09-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-09-23	mikr	NF-PM1	B1=2700000, B2=84000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-30	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-25	markr	NF	no factor from 2^61 to 2^62
2011-04-22	James Heinrich	NF-PM1	B1=185000, B2=4578750, E=6
2011-01-18	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-29	Sturle Sunde	NF	no factor from 2^60 to 2^61