627 919 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
23509873273647371174462226066175286793121	41	134.1	2022-09-28 08:21:26

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	249 / 640

Estimated T-Level: 26.9 ⓘ

TF below 2^85 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	2414	0
Verified (Factored)		Sergio Filippini	C7612823491E2414	0
Verified (Factored)		Tom Cage	C7612823491E2414	0
Verified (Factored)	2015-04-11	MadPoo	C7612823491E2414	401277

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-09-28	masser	98DC8BEC74276517	1	72699	5	3

P-1 factors

Date	Factor	B1	B2
2022-09-28	23509873273647371174462226066175286793121	52000000	739960221000

History

Date	User	Type	Result
2022-10-04	PCanalytics.com	CERT	PRP Certification Proof certified good
2022-09-28	masser	C-PRP	M627919/23509873273647371174462226066175286793121 : 98DC8BEC74276517 PRP proof power = 6 PRP: Verified Proof certified good
2022-09-28	masser	F-PM1	Factor: 23509873273647371174462226066175286793121 / (P-1, B1=52000000, B2=739960221000)
2022-09-15	masser	NF-PM1	B1=52000000
2022-08-28	masser	NF-PP1	Start=2/7, B1=5200000, B2=223600000
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-11-24	Carlos Pinho	NF-PM1	B1=45000, B2=1954000, E=6
2018-12-03	Smok_bmv	NF	no factor from 2^68 to 2^69
2018-12-03	Smok_bmv	NF	no factor from 2^67 to 2^68
2018-12-03	Smok_bmv	NF	no factor from 2^66 to 2^67
2017-07-17	Smok_bmv	NF	no factor from 2^65 to 2^66
2017-06-22	Smok_bmv	NF	no factor from 2^64 to 2^65
2015-11-07	Sid & Andy	NF-PM1	B1=6279190, B2=188375700, E=12
2015-10-09	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-10-09	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-06-09	lycorn	NF	no factor from 2^61 to 2^62
2015-04-11	MadPoo	C-LL	C7612823491E2414
2013-10-16	David Campeau	NF-PM1	B1=1280000, B2=40960000, E=12
2012-08-01	Joss	NF-PM1	B1=1255838
2012-06-19	Joss	NF-PM1	B1=627943
2011-09-05	Joss	NF-PM1	B1=607390
2011-07-10	Joss	NF-PM1	B1=364434
2010-08-14	Architects Cubed	NF	no factor from 2^60 to 2^61
2008-10-12	Sturle Sunde	NF	no factor from 2^59 to 2^60

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