1 647 857 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
8788087916502066219164401	25	82.9	2016-10-10 15:12:58

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)		David Brlej	2F2592021FD76C7B	0
Verified (Factored)	1998-12-06	Yann Forget	2F2592021FD76C7B	864907
Verified (Factored)	2015-07-19	MadPoo	2F2592021FD76C7B	1325427

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-02	Oliver Kruse	10648F13F53DBAE9	1	0	1	3
Verified	2017-11-02	kkmrkkblmbrbk	10648F13F53DBAE9	1	1466009	1	3

History

Date	User	Type	Result
2017-11-02	kkmrkkblmbrbk	C-PRP	M1647857/8788087916502066219164401 : 10648F13F53DBAE9 PRP: Verified PRP without proof (not generated)
2017-10-02	Oliver Kruse	C-PRP	M1647857/8788087916502066219164401 : 10648F13F53DBAE9 PRP: Verified PRP without proof (not generated)
2016-10-10	bam	F-ECM	Factor: 8788087916502066219164401 / (ECM curve 1, 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 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-10-11	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-19	MadPoo	C-LL	2F2592021FD76C7B
2015-05-07	monst	NF	no factor from 2^64 to 2^65
2015-05-06	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
2010-08-03	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-30	Architects Cubed	NF	no factor from 2^60 to 2^61

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