7 603 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
918910927273	12	39.7	old
923076980788359348074835915062253631	36	119.5	old
98835378766258125912022750048913085880509545452951	50	166.1	2021-03-27 18:45:15

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	12674 / 16550

Estimated T-Level: 48.8 ⓘ

TF below 2^157 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	60422D7C9B4E7C62	2	0	1	3
Factored	No proof (small exponent)	2017-10-02	kkmrkkblmbrbk	60422D7C9B4E7C62	2	0	1	3
Factored	No proof (small exponent)	2017-12-07	ATH	60422D7C9B4E7C62	2	6760	1	3
Factored	No proof (small exponent)	2020-04-17	Oliver Kruse	63F59F2925AFA380	2	6921	5	3
Verified	No proof (small exponent)	2021-03-28	rbanov	63F59F2925AFA380	3	2059	5	3

History

Date	User	Type	Result
2025-05-28	masser	NF-PP1	Start=108/53, B1=1300000000, B2=1298700000000
2024-12-09	yuriy_5-1	NF-PM1	B1=24000000000, B2=93848103835646160
2021-07-07	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2021-03-28	rbanov	C-PRP	M7603/918910927273/923076980788359348074835915062253631/98835378766258125912022750048913085880509545452951 : 63F59F2925AFA380
2021-03-27	Ryan Propper	F-ECM	Factor: 98835378766258125912022750048913085880509545452951
2020-04-17	Oliver Kruse	C-PRP	M7603/918910927273/923076980788359348074835915062253631 : 63F59F2925AFA380
2017-12-07	ATH	C-PRP	M7603/918910927273/923076980788359348074835915062253631 : 60422D7C9B4E7C62
2017-10-02	kkmrkkblmbrbk	C-PRP	M7603/918910927273/923076980788359348074835915062253631 : 60422D7C9B4E7C62
2017-09-21	Oliver Kruse	C-PRP	M7603/known_factors : 60422D7C9B4E7C62