191 509 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
15374342521	11	33.8	old
607159750583	12	39.1	2008-07-27 10:50:00
11580060051466798155753581927	29	93.2	2022-06-18 03:46:36

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	634 / 640

Estimated T-Level: 30.0 ⓘ

TF below 2^95 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	D0261F48347D9E00	2	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	D0261F48347D9E00	2	177353	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	723AB164AF1C19D8	2	127510	5	3
Verified	2022-06-20	some-students	723AB164AF1C19D8	3	93996	5	3
Verified	2023-08-24	USAFSS	723AB164AF1C19D8	3	133493	5	3

History

Date	User	Type	Result
2023-08-24	flaq	CERT	PRP Certification Proof certified good
2023-08-24	USAFSS	C-PRP	M191509/15374342521/607159750583/11580060051466798155753581927 : 723AB164AF1C19D8 PRP proof power = 5 PRP: Verified Proof certified good
2022-06-20	citizenscience.ru	CERT	PRP Certification Proof certified good
2022-06-20	some-students	C-PRP	M191509/15374342521/607159750583/11580060051466798155753581927 : 723AB164AF1C19D8 PRP proof power = 5 PRP: Verified Proof certified good
2022-06-18	debrouxl	F-ECM	Factor: 11580060051466798155753581927 / (ECM curve 7, B1=250000, B2=36000000, Sigma=4126733607445273)
2020-04-17	Oliver Kruse	C-PRP	M191509/15374342521/607159750583 : 723AB164AF1C19D8 PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M191509/15374342521/607159750583 : D0261F48347D9E00 PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M191509/15374342521/607159750583 : D0261F48347D9E00 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M191509/15374342521/607159750583 : D0261F48347D9E00 PRP without proof (not generated)
2017-07-29	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2008-07-27	J Feitsma	F	Factor: 607159750583