9 227 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 2^164 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	63000000000
B2 =	260683432927717800

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	7908 / 40830

Estimated T-Level: 51.0 ⓘ

Status	Date	User	Residue	Shift
Verified		Unknown	0F7F	0
Verified		George Woltman	5A03908C6C8A0F7F	0
Verified		Brian J. Beesley	5A03908C6C8A0F7F	0
Verified	2015-04-11	MadPoo	5A03908C6C8A0F7F	1839

History

Date	User	Type	Result
2023-08-19	masser	NF-PP1	Start=6/5, B1=900000000, B2=161100000000
2023-07-10	JacobZ	NF-PM1	B1=63000000000, B2=260683432927717800
2023-07-10	masser	NF-PP1	Start=150/17, B1=900000000, B2=36000000000
2022-06-06	Anton Repko	NF	no factor from 2^64 to 2^66
2021-05-12	ATH	NF-PP1	Start=2/7, B1=1000000000, B2=241000000000
2021-01-02	Ruslan Borisov	NF	no factor from 2^64 to 2^65
2018-08-19	snme2pm1	NF	no factor from 2^63 to 2^64
2016-11-13	-Anonymous-	NF-PM1	B1=100000000000, B2=1000000000000, E=12
2016-10-14	snme2pm1	NF	no factor from 2^62 to 2^63
2016-06-01	mikr	NF-PM1	B1=50000000000, B2=3200000000000, E=12
2016-05-19	-Anonymous-	NF-PM1	B1=10000000000, B2=100000000000, E=12
2016-02-23	LaurV	NF	no factor from 2^57 to 2^58
2015-04-11	MadPoo	C-LL	5A03908C6C8A0F7F
2015-04-03	snme2pm1	NF	no factor from 2^61 to 2^62
2015-02-06	Jayder	NF-PM1	B1=1308096280, B2=81101969375, 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