762 053 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
647385799048057610810264497	27	89.1	2022-06-10 12:31:28

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	99 / 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 Slowinski	245F	0
Verified (Factored)		Joe Decker	6E2A91A43F4FA45F	0
Verified (Factored)	2002-10-26	S57483	6E2A91A43F4FA45F	635946
Verified (Factored)	2015-04-11	MadPoo	6E2A91A43F4FA45F	207696

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-06-14	mnd9	01A30F6AC0778075	1	295805	5	3
Verified	2022-10-04	ATH	01A30F6AC0778075	1	563113	5	3

P-1 factors

Date	Factor	B1	B2
2022-06-10	647385799048057610810264497	15000000	1504205552850

History

Date	User	Type	Result
2022-10-04	Dale	CERT	PRP Certification Proof certified good
2022-10-04	ATH	C-PRP	M762053/647385799048057610810264497 : 01A30F6AC0778075 PRP proof power = 6 PRP: Verified Proof certified good
2022-06-14	mnd9	C-PRP	M762053/647385799048057610810264497 : 01A30F6AC0778075 PRP proof power = 6 PRP: Verified PRP proof never uploaded
2022-06-10	lycorn	F-PM1	Factor: 647385799048057610810264497 / (P-1, B1=15000000, B2=1504205552850)
2022-03-16	Gordon Spence	NF	no factor from 2^67 to 2^68
2020-05-19	Gordon Spence	NF	no factor from 2^66 to 2^67
2018-02-02	Smok_bmv	NF	no factor from 2^65 to 2^66
2016-03-28	lycorn	NF	no factor from 2^64 to 2^65
2015-11-29	Sid & Andy	NF-PM1	B1=7620530, B2=228615900, E=12
2015-10-20	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-10-20	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-04-11	MadPoo	C-LL	6E2A91A43F4FA45F
2015-03-05	NR	NF	no factor from 2^61 to 2^62
2013-10-25	David Campeau	NF-PM1	B1=1675000, B2=56950000, E=12
2012-07-14	Joss	NF-PM1	B1=1524106
2012-05-05	Joss	NF-PM1	B1=1417650
2011-11-25	Joss	NF-PM1	B1=945100
2011-08-17	Joss	NF-PM1	B1=472550
2011-06-24	Joss	NF-PM1	B1=400000
2010-06-12	Architects Cubed	NF	no factor from 2^60 to 2^61
2008-10-14	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-10-13	Sturle Sunde	NF	no factor from 2^58 to 2^59

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