2 452 103 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
70800172375142930671183	23	75.9	2020-07-22 19:17:50

ECM

Digits	B1	Curves
25	50000	63 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Steve Costaras	BE6819A66515FF7B	0
Verified (Factored)	1999-04-13	Ari Örn	BE6819A66515FF7B	1292634
Verified (Factored)	2018-05-26	kkmrkkblmbrbk	BE6819A66515FF7B	343631

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-07-23	pew	B4C4CE8DD25E7630	1	1004819	5	3
Verified	2020-07-23	ATH	B4C4CE8DD25E7630	1	1513549	5	3

History

Date	User	Type	Result
2020-07-23	ATH	C-PRP	M2452103/70800172375142930671183 : B4C4CE8DD25E7630 PRP: Verified PRP without proof (not generated)
2020-07-23	pew	C-PRP	M2452103/70800172375142930671183 : B4C4CE8DD25E7630 PRP: Verified PRP without proof (not generated)
2020-07-22	GAN	F-ECM	Factor: 70800172375142930671183 / (ECM curve 3, B1=50000, B2=5000000, Sigma=3493665895635408)
2019-07-17	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-26	kkmrkkblmbrbk	C-LL	BE6819A66515FF7B
2017-07-14	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-02-05	mikr	NF-PM1	B1=3102822, B2=43439508, E=12
2013-12-04	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-06-07	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-19	Oscar Östlin	NF-PM1	B1=95000, B2=1947500, E=6
2010-12-15	Joss	NF-PM1	B1=20000
2009-01-16	Sturle Sunde	NF	no factor from 2^60 to 2^61