4 919 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
9839	4	13.3	old
2872697	7	21.5	old
1444880310479	13	40.4	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	16550 / 16550
55	110000000	16457 / 40830

Estimated T-Level: 52.0 ⓘ

TF below 2^168 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	D164E053AC76CF3F	3	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	D164E053AC76CF3F	3	2794	1	3
Verified	2020-04-17	Oliver Kruse	5E1F6F7A504E83B0	3	3082	5	3
Verified (Factored)	2022-05-12	Jorge Coveiro	5E1F6F7A504E83B0	1	4794	5	3
Verified	2024-02-03	Wentao Huang	5E1F6F7A504E83B0	3	39	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M4919/9839/2872697/1444880310479 : 5E1F6F7A504E83B0 PRP: Verified PRP without proof (small exponent)
2023-05-31	-Anonymous-	NF-PM1	B1=64000000000, B2=642189744639793350
2022-05-12	Jorge Coveiro	C-PRP	M4919/9839 : 5E1F6F7A504E83B0 PRP: Verified PRP without proof (small exponent)
2021-07-10	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M4919/9839/2872697/1444880310479 : 5E1F6F7A504E83B0 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M4919/9839/2872697/1444880310479 : D164E053AC76CF3F PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M4919/9839/2872697/1444880310479 : D164E053AC76CF3F PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M4919/9839/2872697/1444880310479 : D164E053AC76CF3F PRP without proof (not generated)