1 002 647 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
325041907948871839553	21	68.1	2016-12-30 10:08:45
984829087269388376423	21	69.7	2009-10-09 02:11:38

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	19DA	0
Verified (Factored)		Brian J. Beesley	B5D6BD5740A5B9DA	0
Verified (Factored)		Michel Lacoursière	B5D6BD5740A5B9DA	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-05	Oliver Kruse	B8AF8B0E81FA4F36	2	0	1	3
Verified	2017-10-15	Oliver Kruse	B8AF8B0E81FA4F36	2	317542	1	3
Verified	2017-12-25	ATH	B8AF8B0E81FA4F36	2	890413	1	3

History

Date	User	Type	Result
2022-04-11	LordJulius	NF	no factor from 2^63 to 2^64
2022-04-11	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-11	LordJulius	NF	no factor from 2^61 to 2^62
2022-04-11	LordJulius	NF	no factor from 2^1 to 2^61
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2021-05-25	ViliamF	NF-PM1	B1=10000000, B2=1110000000
2017-12-25	ATH	C-PRP	M1002647/325041907948871839553/984829087269388376423 : B8AF8B0E81FA4F36 PRP: Verified PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M1002647/984829087269388376423/325041907948871839553 : B8AF8B0E81FA4F36 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1002647/984829087269388376423/325041907948871839553 : B8AF8B0E81FA4F36 PRP: Verified PRP without proof (not generated)
2017-09-28	Oliver Kruse	C-PRP	M1002647/984829087269388376423/325041907948871839553 : B8AF8B0E81FA4F36 PRP without proof (not generated)
2016-12-30	TJAOI	F-ECM	Factor: 325041907948871839553 / (ECM curve 23, B1=50000, B2=5000000)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12
2009-10-09	JimBa	F-ECM	Factor: 984829087269388376423
2009-06-06	Rob_Dee	NF-PM1	B1=600000, B2=800000
2009-06-06	Rob_Dee	NF-PM1	B1=400000, B2=600000
2009-06-05	Rob_Dee	NF-PM1	B1=200000, B2=400000
2009-02-17	Sturle Sunde	NF	no factor from 2^60 to 2^61