2 507 387 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 2⁶³

Factored

Factor	Digits	Bits	Date
97115044535365121	17	56.4	old
10959570600706156999	20	63.2	2017-01-12 12:10:00

ECM

Digits	B1	Curves
25	50000	177 / 280

Estimated T-Level: 23.2 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-14	Oliver Kruse	DA59701F0177AA2E	2	657153	5	3
Verified	PRP without proof (not generated)	2017-12-01	nokno	6373C6418DE3B6B3	2	0	1	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	DA59701F0177AA2E	2	1377861	5	3
Verified	PRP without proof (not generated)	2017-12-04	kkmrkkblmbrbk	6373C6418DE3B6B3	2	598717	1	3

History

Date	User	Type	Result
2022-08-20	USAFSS	NF-PM1	B1=240000, B2=199861200
2017-12-04	kkmrkkblmbrbk	C-PRP	M2507387/97115044535365121/10959570600706156999 : 6373C6418DE3B6B3
2017-12-01	storm5510	C-PRP	M2507387/97115044535365121/10959570600706156999 : DA59701F0177AA2E
2017-12-01	nokno	C-PRP	M2507387/97115044535365121/10959570600706156999 : 6373C6418DE3B6B3
2017-10-14	Oliver Kruse	C-PRP	M2507387/97115044535365121/10959570600706156999 : DA59701F0177AA2E
2017-01-12	TJAOI	F	Factor: 10959570600706156999