2 236 369 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
26753737785756100433651526841	29	94.4	2015-12-01 19:51:23

ECM

Digits	B1	Curves
25	50000	85 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ed Knapton	42CF0FF63F9C55CC	0
Verified (Factored)	1999-03-26	Ethan Hansen	42CF0FF63F9C55CC	11057

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	C4B3AEB3D0A66B27	1	0	1	3
Verified	2017-10-28	Oliver Kruse	C4B3AEB3D0A66B27	1	1701793	1	3

P-1 factors

Date	Factor	B1	B2
2015-12-01	26753737785756100433651526841	1000000	6000000

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-10-28	Oliver Kruse	C-PRP	M2236369/26753737785756100433651526841 : C4B3AEB3D0A66B27 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2236369/26753737785756100433651526841 : C4B3AEB3D0A66B27 PRP: Verified PRP without proof (not generated)
2016-04-19	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-12-01	Alexander Dubrovin	F-PM1	Factor: 26753737785756100433651526841 / (P-1, B1=1000000, B2=6000000, E=6)
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-10	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-10	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-30	Joss	NF-PM1	B1=142400
2014-06-01	Joss	NF-PM1	B1=113700
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-21	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-14	Oscar Östlin	NF-PM1	B1=85000, B2=1615000, E=6
2010-11-07	Oscar Östlin	NF-PM1	B1=75011
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61