538 763 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁶⁸

TF target 2⁴⁴

TF below 2^97 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	70000000
B2 =	2417096561880

ECM

Estimated T-Level: 30.8 ⓘ

Status	Date	User	Residue	Shift
Verified		David Slowinski	3E71	0
Verified		Charles F. Kerchner III	0A0D015AB9E9BE71	0
Verified		Klaus Kastens	0A0D015AB9E9BE71	24891
Verified	2015-04-11	MadPoo	0A0D015AB9E9BE71	292235

History

Date	User	Type	Result
2023-09-23	linament	NF-PM1	B1=70000000, B2=2417096561880
2023-09-22	linament	NF-PM1	B1=70000000
2023-07-23	Joss	NF-PM1	B1=2223393, B2=73535241780
2022-12-22	masser	NF-PP1	Start=6/5, B1=8000000, B2=216000000
2022-12-20	masser	NF-PP1	Start=2/7, B1=16000000, B2=496000000
2022-12-14	masser	NF-PP1	Start=146/71, B1=4000000, B2=96000000
2022-11-21	Joss	NF-PM1	B1=2223393, B2=27259612380
2022-05-07	Gordon Spence	NF	no factor from 2^67 to 2^68
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-09-17	Yxinity	NF	no factor from 2^66 to 2^67
2018-05-24	chuenkit	NF	no factor from 2^65 to 2^66
2017-11-27	BloodERazor	NF	no factor from 2^64 to 2^65
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^60 to 2^61
2015-09-03	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-09-03	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-09	NR	NF	no factor from 2^61 to 2^62
2015-04-11	MadPoo	C-LL	0A0D015AB9E9BE71
2015-01-17	Denial140	NF-PM1	B1=10000000, B2=250000000, E=12
2012-06-19	Joss	NF-PM1	B1=2222393
2011-07-26	Joss	NF-PM1	B1=740797
2011-06-26	Joss	NF-PM1	B1=444478
2011-06-12	Joss	NF-PM1	B1=400000

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