5 939 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
617657	6	19.2	old
706741001	9	29.4	old
1087467498637621069177269818801643959	37	119.7	2016-10-20 21:04:07
8941854997453956511728280870260701671707433	43	142.7	2020-11-14 13:52:25

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	4376 / 16550

Estimated T-Level: 46.3 ⓘ

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

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	6E9D0FCF25C7FB50	3	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	6E9D0FCF25C7FB50	3	0	1	3
Verified (Factored)	2017-11-06	ATH	6E9D0FCF25C7FB50	3	392	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	ECAAA934B30DC1EB	3	2915	5	3
Verified	2020-11-14	mrh	ECAAA934B30DC1EB	4	379	5	3

History

Date	User	Type	Result
2023-07-25	-Anonymous-	NF-PM1	B1=42000000000, B2=171618195782983950
2021-07-06	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-11-14	mrh	C-PRP	M5939/617657/706741001/1087467498637621069177269818801643959/8941854997453956511728280870260701671707433 : ECAAA934B30DC1EB PRP: Verified PRP without proof (small exponent)
2020-11-14	Ryan Propper	F-ECM	Factor: 8941854997453956511728280870260701671707433 / (ECM curve 1, B1=43000000, B2=198654756318, Sigma=9208660399578516211)
2020-04-17	Oliver Kruse	C-PRP	M5939/617657/706741001/1087467498637621069177269818801643959 : ECAAA934B30DC1EB PRP: Verified PRP without proof (small exponent)
2017-11-06	ATH	C-PRP	M5939/617657/706741001/1087467498637621069177269818801643959 : 6E9D0FCF25C7FB50 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M5939/617657/706741001/1087467498637621069177269818801643959 : 6E9D0FCF25C7FB50 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5939/617657/706741001/1087467498637621069177269818801643959 : 6E9D0FCF25C7FB50 PRP: Verified PRP without proof (not generated)
2016-10-20	kkmrkkblmbrbk	F-ECM	Factor: 1087467498637621069177269818801643959 / (ECM curve 304, B1=11000000, B2=1100000000)