10 831 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁶⁶

TF target 2⁴⁴

TF below 2^171 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	1000000000000
B2 =	1400243748567553890

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	24942 / 40830

Estimated T-Level: 53.1 ⓘ

Status	Date	User	Residue	Shift
Verified		Unknown	45BA	0
Verified		George Woltman	E659AD6EED5F45BA	0
Verified		Brian J. Beesley	E659AD6EED5F45BA	0
Verified	2015-04-11	MadPoo	E659AD6EED5F45BA	3269

History

Date	User	Type	Result
2023-08-19	masser	NF-PP1	Start=6/5, B1=750000000, B2=134250000000
2023-07-09	masser	NF-PP1	Start=186/31, B1=750000000, B2=30000000000
2022-06-19	-Anonymous-	NF-PM1	B1=1000000000000, B2=1400243748567553890
2022-02-22	-Anonymous-	NF-PM1	B1=100000000000, B2=121047848166084840
2021-08-22	Ruslan Borisov	NF	no factor from 2^65 to 2^66
2021-05-12	ATH	NF-PP1	Start=2/7, B1=1000000000, B2=241000000000
2020-09-03	LaurV	NF	no factor from 2^64 to 2^65
2018-09-12	snme2pm1	NF	no factor from 2^63 to 2^64
2017-05-14	nordi	NF-PM1	B1=150022003227, B2=7051034151676, E=12
2016-02-23	LaurV	NF	no factor from 2^57 to 2^58
2015-11-15	snme2pm1	NF	no factor from 2^62 to 2^63
2015-04-11	MadPoo	C-LL	E659AD6EED5F45BA
2015-03-24	snme2pm1	NF	no factor from 2^61 to 2^62
2012-12-20	bcp19	NF-PM1	B1=10000000000, B2=100000000000, E=12
2012-11-08	bcp19	NF	no factor from 2^60 to 2^61
2010-07-20	George Woltman	NF	no factor from 2^59 to 2^60
2010-07-20	George Woltman	NF	no factor from 2^58 to 2^59