90 217 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
720707617814516466358044953353962564408041	42	139.0	2022-07-01 22:53:10

ECM

Estimated T-Level: 36.5 ⓘ

TF below 2^116 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	0812	0
Verified (Factored)		Charles F. Kerchner III	692BF2CA0CC58812	0
Verified (Factored)		Brian J. Beesley	692BF2CA0CC58812	0
Verified (Factored)	2015-04-11	MadPoo	692BF2CA0CC58812	79624

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-07-02	George Woltman	9C8415F700FCD8D6	1	23323	5	3
Verified	2022-07-07	Funky Waddle	9C8415F700FCD8D6	1	14030	5	3

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2022-02-05	Patrick	factor ECM small	C1S2	0.00 %	2024-04-12

P-1 factors

Date	Factor	B1	B2
2022-07-01	720707617814516466358044953353962564408041	3000000000	237575071283550

History

Date	User	Type	Result
2022-07-07	Funky Waddle	C-PRP	M90217/720707617814516466358044953353962564408041 : 9C8415F700FCD8D6 PRP: Verified PRP without proof (small exponent)
2022-07-02	George Woltman	C-PRP	M90217/720707617814516466358044953353962564408041 : 9C8415F700FCD8D6 PRP: Verified PRP without proof (small exponent)
2022-07-01	George Woltman	F-PM1	Factor: 720707617814516466358044953353962564408041 / (P-1, B1=3000000000, B2=237575071283550)
2022-06-25	George Woltman	NF-PM1	B1=3000000000
2021-11-07	lycorn	NF-PP1	Start=6/5, B1=100000000, B2=8100000000
2021-11-07	lycorn	NF-PP1	Start=2/7, B1=100000000, B2=8100000000
2020-03-16	Yxinity	NF	no factor from 2^65 to 2^66
2020-03-16	Yxinity	NF	no factor from 2^65 to 2^66
2018-09-04	Yxinity	NF	no factor from 2^64 to 2^65
2018-09-03	Yxinity	NF	no factor from 2^64 to 2^65
2017-03-13	snme2pm1	NF	no factor from 2^63 to 2^64
2016-06-17	mikr	NF-PM1	B1=250000000, B2=14000000000, E=12
2016-02-23	LaurV	NF	no factor from 2^57 to 2^58
2016-02-23	LaurV	NF	no factor from 2^58 to 2^59
2015-12-01	snme2pm1	NF	no factor from 2^62 to 2^63
2015-04-11	MadPoo	C-LL	692BF2CA0CC58812
2014-05-14	Sid & Andy	NF	no factor from 2^61 to 2^62
2013-10-20	lycorn	NF	no factor from 2^60 to 2^61
2012-08-29	LaurV	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-01-05	Sturle Sunde	NF	no factor from 2^59 to 2^60

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