17 504 141 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
426315489966437174530195419710289226952407399	45	148.3	old

ECM

Digits	B1	Curves
25	50000	40 / 280

Estimated T-Level: 20.7 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-02-19	M8909387	BDA827E6F5BE5A7C	1	16332875	5	3
Verified	2019-03-30	ANONYMOUS	BDA827E6F5BE5A7C	1	7721301	5	3

History

Date	User	Type	Result
2020-03-14	b3s23love	NF-PM1	B1=152429
2020-03-09	Christoph Zenger	NF	no factor from 2^65 to 2^75
2020-01-23	Christoph Zenger	NF-PM1	B1=1000000, B2=30000000, E=12
2019-03-30	ANONYMOUS	C-PRP	M17504141/426315489966437174530195419710289226952407399 : BDA827E6F5BE5A7C PRP: Verified PRP without proof (not generated)
2019-02-19	M8909387	C-PRP	M17504141/426315489966437174530195419710289226952407399 : BDA827E6F5BE5A7C PRP: Verified PRP without proof (not generated)