461 101 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
139604612488352383444488819353	30	96.8	2017-03-25 01:55:50

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	45D	0
Verified (Factored)		Matt Horbal	B5BE8C1418F5645D	0
Verified (Factored)		Jon Grantham	B5BE8C1418F5645D	0
Verified (Factored)		Eivind Triel	B5BE8C1418F5645D	308442
Verified (Factored)	2016-06-01	MadPoo	B5BE8C1418F5645D	440867

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-25	Oliver Kruse	15A04524D69E384E	1	0	1	3
Verified	2017-09-27	Oliver Kruse	15A04524D69E384E	1	0	1	3
Verified	2017-11-07	kkmrkkblmbrbk	15A04524D69E384E	1	352711	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	31FEC2F4AA9601__	1	167101	5	3

History

Date	User	Type	Result
2020-04-18	Oliver Kruse	C-PRP	M461101/139604612488352383444488819353 : 31FEC2F4AA9601__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-07	kkmrkkblmbrbk	C-PRP	M461101/139604612488352383444488819353 : 15A04524D69E384E PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-27	Oliver Kruse	C-PRP	M461101/139604612488352383444488819353 : 15A04524D69E384E PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-25	Oliver Kruse	C-PRP	M461101/139604612488352383444488819353 : 15A04524D69E384E PRP: Unverified (Reliable) PRP without proof (not generated)
2017-03-25	bam	F-ECM	Factor: 139604612488352383444488819353 / (ECM curve 3, B1=250000, B2=25000000)
2016-06-01	MadPoo	C-LL	B5BE8C1418F5645D
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-01	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-12-01	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-16	NR	NF	no factor from 2^61 to 2^62
2012-09-12	markr	NF-PM1	B1=10000000, B2=400000000, E=12
2011-07-01	Sid & Andy	NF	no factor from 2^60 to 2^61
2010-10-11	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-10-10	Rob_Dee	NF-PM1	B1=500000, B2=1000000
2009-08-26	Carsten Kossendey	NF-PM1	B1=461101