2 537 851 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
48613135345406201	17	55.4	old
57376602865774609	17	55.7	2015-02-06 12:51:57

ECM

Digits	B1	Curves
25	50000	178 / 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	0FD440EC46ADF24D	2	1389439	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	0FD440EC46ADF24D	2	541608	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-01	storm5510	C-PRP	M2537851/48613135345406201/57376602865774609 : 0FD440EC46ADF24D
2017-10-14	Oliver Kruse	C-PRP	M2537851/48613135345406201/57376602865774609 : 0FD440EC46ADF24D
2015-02-06	TJAOI	F	Factor: 57376602865774609

Username
Password