6 373 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
38239	5	15.2	old
140207	6	17.1	old
207849023	9	27.6	old
590432959	9	29.1	old
240506556332664361	18	57.7	old
2281781170953854076028519	25	80.9	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1365 / 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	53781F72BC9AAABB	6	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	53781F72BC9AAABB	6	0	1	3
Verified	2017-12-07	ATH	53781F72BC9AAABB	6	2652	1	3
Verified	2020-04-17	Oliver Kruse	9836C53712C4DDEB	6	1923	5	3
Verified	2024-02-03	Wentao Huang	9836C53712C4DDEB	6	2703	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M6373/38239/140207/207849023/590432959/240506556332664361/2281781170953854076028519 : 9836C53712C4DDEB PRP: Verified PRP without proof (small exponent)
2023-08-05	-Anonymous-	NF-PM1	B1=38000000000, B2=159110268557139900
2021-05-21	nigel	F-ECM	Factor: 158241985390871316985848886105626085297408921 / (ECM curve 1, B1=3000000, B2=300000000, Sigma=3676258063523874)
2020-04-17	Oliver Kruse	C-PRP	M6373/38239/140207/207849023/590432959/240506556332664361/2281781170953854076028519 : 9836C53712C4DDEB PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M6373/38239/140207/207849023/590432959/240506556332664361/2281781170953854076028519 : 53781F72BC9AAABB PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M6373/38239/140207/207849023/590432959/240506556332664361/2281781170953854076028519 : 53781F72BC9AAABB PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M6373/known_factors : 53781F72BC9AAABB PRP without proof (not generated)