9 497 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
531833	6	19.0	old
3826715995245809	16	51.8	old
186380199351575297	18	57.4	old
1927931269439244738847	22	70.7	old
2906763363066789240328664008922853143	37	121.1	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1281 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 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	EB7641E1A6F6F88B	5	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	EB7641E1A6F6F88B	5	0	1	3
Verified	2017-12-07	ATH	EB7641E1A6F6F88B	5	8099	1	3
Unverified	2020-04-17	Oliver Kruse	639341B1E8E42E__	5	7129	5	3

History

Date	User	Type	Result
2023-06-28	JacobZ	NF-PM1	B1=61000000000, B2=254995794420917550
2022-11-24	Kevin_9611	NF-PM1	B1=1000000000, B2=100149831201420
2021-08-27	Seth_Tr	NF-PM1	B1=400000000
2021-08-27	Seth_Tr	NF-PM1	B1=100000000
2020-04-17	Oliver Kruse	C-PRP	M9497/531833/3826715995245809/186380199351575297/1927931269439244738847/2906763363066789240328664008922853143 : 639341B1E8E42E__ PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M9497/531833/3826715995245809/186380199351575297/1927931269439244738847/2906763363066789240328664008922853143 : EB7641E1A6F6F88B PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M9497/531833/3826715995245809/186380199351575297/1927931269439244738847/2906763363066789240328664008922853143 : EB7641E1A6F6F88B PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M9497/known_factors : EB7641E1A6F6F88B PRP without proof (not generated)