4 736 737 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
88591414591927496407	20	66.3	2015-07-03 09:51:51

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-04-27	Ars Technica Team Prime Rib	8433AF14079234E2	0
Verified (Factored)	2000-01-04	Dwight Leu	8433AF14079234E2	752523

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	45D124117440FE2D	1	0	1	3
Verified	2018-03-14	trebor	45D124117440FE2D	1	1984880	1	3

P-1 factors

Date	Factor	B1	B2
2015-07-03	88591414591927496407	1037000	30073000

History

Date	User	Type	Result
2023-03-18	USAFSS	NF-PM1	B1=240000, B2=119048790
2018-03-14	trebor	C-PRP	M4736737/88591414591927496407 : 45D124117440FE2D PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4736737/88591414591927496407 : 45D124117440FE2D PRP: Verified PRP without proof (not generated)
2015-07-03	David Campeau	F-PM1	Factor: 88591414591927496407
2015-01-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2011-10-25	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-06-08	markr	NF	no factor from 2^61 to 2^62