571 867 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
44588113551716409849927669965071	32	105.1	2019-04-17 02:57:54

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	209 / 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	76D	0
Verified (Factored)		Rene Wassenaar	31B24EDCEBE2876D	0
Verified (Factored)		Olaf Kortlueke	31B24EDCEBE2876D	0
Verified (Factored)	2015-04-11	MadPoo	31B24EDCEBE2876D	442670

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-17	ATH	06FEEF4AA9911539	1	14609	5	3
Verified	2019-04-18	marssystems	06FEEF4AA9911539	1	538516	5	3

P-1 factors

Date	Factor	B1	B2
2019-04-17	44588113551716409849927669965071	10000000	400000000

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-04-18	marssystems	C-PRP	M571867/44588113551716409849927669965071 : 06FEEF4AA9911539 PRP: Verified PRP without proof (small exponent)
2019-04-17	ATH	C-PRP	M571867/44588113551716409849927669965071 : 06FEEF4AA9911539 PRP: Verified PRP without proof (small exponent)
2019-04-17	alex	F-PM1	Factor: 44588113551716409849927669965071 / (P-1, B1=10000000, B2=400000000, E=12)
2018-06-04	chuenkit	NF	no factor from 2^65 to 2^66
2017-11-16	BloodERazor	NF	no factor from 2^64 to 2^65
2016-02-23	Mark Rose	NF	no factor from 2^60 to 2^61
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-09-15	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-09-15	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-12	NR	NF	no factor from 2^61 to 2^62
2015-04-22	Sid & Andy	NF-PM1	B1=5718670, B2=171560100, E=12
2015-04-11	MadPoo	C-LL	31B24EDCEBE2876D
2013-09-28	David Campeau	NF-PM1	B1=1040000, B2=32240000, E=12
2012-03-05	Joss	NF-PM1	B1=857099
2011-08-24	Joss	NF-PM1	B1=685679
2011-07-01	Joss	NF-PM1	B1=411407