788 009 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
880054373786950119810401	24	79.5	2016-02-10 04:15:35

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	16C	0
Verified (Factored)		Brian J. Beesley	745B81F5D1B8816C	0
Verified (Factored)		Larry English	745B81F5D1B8816C	0
Verified (Factored)	2015-04-11	MadPoo	745B81F5D1B8816C	293984

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	Oliver Kruse	4688CFD69EE9798D	1	0	1	3
Verified	2017-10-13	Oliver Kruse	4688CFD69EE9798D	1	519062	1	3
Verified	2017-12-16	ATH	4688CFD69EE9798D	1	573981	1	3
Unverified (Reliable)	2020-04-21	Oliver Kruse	F790B6876B8891__	1	398779	5	3

History

Date	User	Type	Result
2020-04-21	Oliver Kruse	C-PRP	M788009/880054373786950119810401 : F790B6876B8891__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-16	ATH	C-PRP	M788009/880054373786950119810401 : 4688CFD69EE9798D PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-13	Oliver Kruse	C-PRP	M788009/880054373786950119810401 : 4688CFD69EE9798D PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M788009/880054373786950119810401 : 4688CFD69EE9798D PRP: Unverified (Reliable) PRP without proof (not generated)
2016-02-10	bam	F-ECM	Factor: 880054373786950119810401 / (ECM curve 1, B1=50000, B2=5000000)
2015-11-25	Sid & Andy	NF-PM1	B1=7880090, B2=236402700, E=12
2015-10-24	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-10-24	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-04-11	MadPoo	C-LL	745B81F5D1B8816C
2015-03-07	NR	NF	no factor from 2^61 to 2^62
2013-11-04	David Campeau	NF-PM1	B1=1630000, B2=55420000, E=12
2012-07-21	Joss	NF-PM1	B1=1576018
2012-01-09	Joss	NF-PM1	B1=904935
2011-08-28	Joss	NF-PM1	B1=452467
2011-07-10	Joss	NF-PM1	B1=271480
2010-06-08	Architects Cubed	NF	no factor from 2^60 to 2^61
2008-10-13	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-10-13	Sturle Sunde	NF	no factor from 2^58 to 2^59