1 872 943 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
7762959689135156328527	22	72.7	2018-01-02 21:57:05
787332969561006372989063417	27	89.3	2023-11-06 11:29:31

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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	Shift
Verified (Factored)		Joel Smith	0501DB93CB2087C8	0
Verified (Factored)	1999-01-10	Ethan O'Connor	0501DB93CB2087C8	391439
Verified (Factored)	2015-06-27	MadPoo	0501DB93CB2087C8	1523241

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-01-04	BloodERazor	545F55D516ECF35A	1	1429536	5	3
Verified (Factored)	2018-01-04	ATH	545F55D516ECF35A	1	163492	5	3
Verified (Factored)	2018-01-06	Oliver Kruse	545F55D516ECF35A	1	1315677	5	3
Verified	2023-11-06	Anton Tsvetkov	545F55D516ECF35A	2	66548	5	3

History

Date	User	Type	Result
2023-11-06	LookAS	CERT	PRP Certification Proof certified good
2023-11-06	Anton Tsvetkov	C-PRP	M1872943/7762959689135156328527/787332969561006372989063417 : 545F55D516ECF35A PRP proof power = 7 PRP: Verified Proof certified good
2023-11-06	TJAOI	F-ECM	Factor: 787332969561006372989063417 / (ECM curve 23, B1=250000, B2=40000000, Sigma=4586088755505254)
2018-01-06	Oliver Kruse	C-PRP	M1872943/7762959689135156328527 : 545F55D516ECF35A PRP: Verified (Factored) PRP without proof (not generated)
2018-01-04	ATH	C-PRP	M1872943/7762959689135156328527 : 545F55D516ECF35A PRP: Verified (Factored) PRP without proof (not generated)
2018-01-04	BloodERazor	C-PRP	M1872943/7762959689135156328527 : 545F55D516ECF35A PRP: Verified (Factored) PRP without proof (not generated)
2018-01-02	bam	F-ECM	Factor: 7762959689135156328527 / (ECM curve 1, B1=50000, B2=5000000)
2017-04-02	Joss	NF-PM1	B1=1388160, B2=13881600, E=12
2017-01-21	Joss	NF-PM1	B1=1156800
2017-01-03	Joss	NF-PM1	B1=864000
2016-12-20	Joss	NF-PM1	B1=720000
2016-11-13	Joss	NF-PM1	B1=600000
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-10-07	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2015-09-11	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-27	MadPoo	C-LL	0501DB93CB2087C8
2015-05-08	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-08	snme2pm1	NF	no factor from 2^63 to 2^64
2012-01-10	markr	NF-PM1	B1=275000, B2=6000000, E=12
2011-03-08	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-11	Architects Cubed	NF	no factor from 2^60 to 2^61

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