1 764 557 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
474058825393	12	38.8	old
13058737635091095485591	23	73.5	2015-06-02 17:24:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	137 / 640

Estimated T-Level: 26.1 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-03	Oliver Kruse	7438D122985049D6	2	0	1	3
Verified	2017-11-04	ATH	7438D122985049D6	2	252476	1	3

P-1 factors

Date	Factor	B1	B2
2015-06-02	13058737635091095485591	500000	15000000

History

Date	User	Type	Result
2017-11-04	ATH	C-PRP	M1764557/474058825393/13058737635091095485591 : 7438D122985049D6 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1764557/474058825393/13058737635091095485591 : 7438D122985049D6 PRP: Verified PRP without proof (not generated)
2015-06-02	alpertron	F-PM1	Factor: 13058737635091095485591 / (P-1, B1=500000, B2=15000000, E=12)