5 927 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
198969391	9	27.6	old
5209897902816676574058958161411364042519278779215049	52	171.8	2020-11-14 05:07:08

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	4321 / 16550

Estimated T-Level: 46.3 ⓘ

TF below 2^149 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	No proof (small exponent)	2017-09-21	Oliver Kruse	5C2426A943499D16	1	0	1	3
Factored	No proof (small exponent)	2017-10-12	kkmrkkblmbrbk	5C2426A943499D16	1	285	1	3
Factored	No proof (small exponent)	2020-04-17	Oliver Kruse	421EA5C9DF86A8E9	1	3237	5	3
Verified	No proof (small exponent)	2020-11-14	Jinyuan Wang	421EA5C9DF86A8E9	2	3219	5	3
Verified	No proof (small exponent)	2020-11-15	Joe S.	421EA5C9DF86A8E9	2	3300	5	3

History

Date	User	Type	Result
2025-05-24	masser	NF-PP1	Start=174/67, B1=1500000000, B2=1498500000000
2023-07-25	-anonymous-	NF-PM1	B1=42000000000, B2=171618195782983950
2021-07-06	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-11-15	Joe S.	C-PRP	M5927/198969391/5209897902816676574058958161411364042519278779215049 : 421EA5C9DF86A8E9
2020-11-14	Jinyuan Wang	C-PRP	M5927/198969391/5209897902816676574058958161411364042519278779215049 : 421EA5C9DF86A8E9
2020-11-14	Ryan Propper	F-ECM	Factor: 5209897902816676574058958161411364042519278779215049
2020-04-17	Oliver Kruse	C-PRP	M5927/198969391 : 421EA5C9DF86A8E9
2017-10-12	kkmrkkblmbrbk	C-PRP	M5927/198969391 : 5C2426A943499D16
2017-09-21	Oliver Kruse	C-PRP	M5927/198969391 : 5C2426A943499D16
2017-09-21	Oliver Kruse	C-PRP	M5927/198969391 : 5C2426A943499D16