218 527 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
18087479791	11	34.1	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	537 / 640

Estimated T-Level: 29.2 ⓘ

TF below 2^92 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	6C2129158509528B	1	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	6C2129158509528B	1	149910	1	3
Verified	2020-01-16	_p95holder_	6F3237E0BCFFE184	1	107406	5	3
Verified	2020-01-19	ATH	6F3237E0BCFFE184	1	19237	5	3
Verified	2023-08-03	USAFSS	6F3237E0BCFFE184	1	209686	5	3

History

Date	User	Type	Result
2023-08-03	curtisc	CERT	PRP Certification Proof certified good
2023-08-03	USAFSS	C-PRP	M218527/18087479791 : 6F3237E0BCFFE184 PRP proof power = 5 PRP: Verified Proof certified good
2022-03-03	Oliver Kruse	NF-PM1	B1=30000000, B2=10070832992220
2021-05-31	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000
2021-05-03	Dylan Delgado	NF-PM1	B1=6500000, B2=604500000
2020-01-19	ATH	C-PRP	M218527/18087479791 : 6F3237E0BCFFE184 PRP: Verified PRP without proof (small exponent)
2020-01-16	_p95holder_	C-PRP	M218527/18087479791 : 6F3237E0BCFFE184 PRP: Verified PRP without proof (small exponent)
2020-01-15	Bommer	F-ECM	Factor: 18087479791 / (ECM curve 1, B1=250000, B2=25000000)
2017-10-12	kkmrkkblmbrbk	C-PRP	M218527/18087479791 : 6C2129158509528B PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M218527/18087479791 : 6C2129158509528B PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M218527/18087479791 : 6C2129158509528B PRP without proof (not generated)