6 379 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 4 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Assignments

Assigned	User	Work Type	Stage	% Done	Updated	Est Complete	Expired
2026-02-21	VGDominion	ECM	C1S1	24.08 %	2026-02-22	2026-03-06

Factored

Factor	Digits	Bits	Date
4972928063	10	32.2	old
1624234299353	13	40.6	old
2214431889859559	16	51.0	old
323253240477421298880073133911	30	98.0	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	2895 / 16550

Estimated T-Level: 45.9 ⓘ

TF below 2^147 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-21	Oliver Kruse	1F9C2AFAB33C535F	4	0	1	3
Verified	No proof (small exponent)	2017-10-02	kkmrkkblmbrbk	1F9C2AFAB33C535F	4	0	1	3
Verified	No proof (small exponent)	2017-12-07	ATH	1F9C2AFAB33C535F	4	1423	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	31553FDA858223C8	4	6296	5	3
Verified	No proof (small exponent)	2024-02-03	Wentao Huang	31553FDA858223C8	4	2758	5	3

History

Date	User	Type	Result
2025-03-20	masser	NF-PP1	Start=125/11, B1=1000000000, B2=999000000000
2025-03-11	masser	NF-PP1	Start=6/5, B1=1000000000, B2=999000000000
2025-03-03	masser	NF-PP1	Start=2/7, B1=1000000000, B2=999000000000
2024-02-03	Wentao Huang	C-PRP	M6379/4972928063/1624234299353/2214431889859559/323253240477421298880073133911 : 31553FDA858223C8
2023-08-05	-anonymous-	NF-PM1	B1=38000000000, B2=159110268557139900
2021-08-02	ViliamF	NF-PM1	B1=500000000, B2=90500000000
2020-04-17	Oliver Kruse	C-PRP	M6379/4972928063/1624234299353/2214431889859559/323253240477421298880073133911 : 31553FDA858223C8
2017-12-07	ATH	C-PRP	M6379/4972928063/1624234299353/2214431889859559/323253240477421298880073133911 : 1F9C2AFAB33C535F
2017-10-02	kkmrkkblmbrbk	C-PRP	M6379/4972928063/1624234299353/2214431889859559/323253240477421298880073133911 : 1F9C2AFAB33C535F
2017-09-21	Oliver Kruse	C-PRP	M6379/known_factors : 1F9C2AFAB33C535F