1 671 053 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
4527937113721827523343	22	71.9	2017-09-24 15:06:15

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)		George Woltman	2150D6AF0EB2C6DA	0
Verified (Factored)	1998-11-21	Louis Towles	2150D6AF0EB2C6DA	1281024
Verified (Factored)	2015-06-27	MadPoo	2150D6AF0EB2C6DA	76295

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-02	Oliver Kruse	0646ABB2C0AE571C	1	0	1	3
Verified	2017-11-02	ATH	0646ABB2C0AE571C	1	310082	1	3

History

Date	User	Type	Result
2017-11-02	ATH	C-PRP	M1671053/4527937113721827523343 : 0646ABB2C0AE571C PRP: Verified PRP without proof (not generated)
2017-10-02	Oliver Kruse	C-PRP	M1671053/4527937113721827523343 : 0646ABB2C0AE571C PRP: Verified PRP without proof (not generated)
2017-09-24	Chang Chia-Tche	F-ECM	Factor: 4527937113721827523343 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-10-11	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-27	MadPoo	C-LL	2150D6AF0EB2C6DA
2015-05-13	monst	NF	no factor from 2^64 to 2^65
2015-05-12	omylist	NF	no factor from 2^63 to 2^64
2012-03-01	Axon	NF-PM1	B1=1000000, B2=20000000, E=12
2012-03-01	Axon	NF-PM1	B1=1000000, B2=8000000, E=12
2012-02-29	Axon	NF-PM1	B1=1000000
2012-02-29	Axon	NF-PM1	B1=900000
2012-02-29	Axon	NF-PM1	B1=800000
2012-02-29	Axon	NF-PM1	B1=700000
2012-02-29	Axon	NF-PM1	B1=600000
2012-02-29	Axon	NF-PM1	B1=500000
2012-02-29	Axon	NF-PM1	B1=400000
2012-02-29	Axon	NF-PM1	B1=300000
2012-02-29	Axon	NF-PM1	B1=200000
2012-02-29	Axon	NF-PM1	B1=100000
2010-08-31	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-26	Architects Cubed	NF	no factor from 2^60 to 2^61

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