7 867 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
380992376184076849742425738143760739968649993	45	148.1	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	6548 / 9201

Estimated T-Level: 43.6 ⓘ

TF below 2^140 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	0C587FBF573C7605	1	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	0C587FBF573C7605	1	0	1	3
Verified	2017-12-07	ATH	0C587FBF573C7605	1	6132	1	3
Verified	2020-04-17	Oliver Kruse	8AD274FD6DCBB501	1	1579	5	3
Verified	2024-02-03	Wentao Huang	8AD274FD6DCBB501	1	6912	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M7867/380992376184076849742425738143760739968649993 : 8AD274FD6DCBB501 PRP: Verified PRP without proof (small exponent)
2021-07-10	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M7867/380992376184076849742425738143760739968649993 : 8AD274FD6DCBB501 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M7867/380992376184076849742425738143760739968649993 : 0C587FBF573C7605 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M7867/380992376184076849742425738143760739968649993 : 0C587FBF573C7605 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M7867/known_factors : 0C587FBF573C7605 PRP without proof (not generated)