236 659 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
233563230433297896071	21	67.7	2009-04-28 00:59:37
2565227361699849726799	22	71.1	2014-12-19 13:17:58
57547960798187163038010612311	29	95.5	2021-02-03 04:35:26
85437293220523171722086682527	29	96.1	2022-11-26 05:31:21

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	478 / 640

Estimated T-Level: 28.7 ⓘ

TF below 2^90 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	064	0
Verified (Factored)		Unknown	0064	0
Verified (Factored)		Brian J. Beesley	9FDE769626DC8064	0
Verified (Factored)		Eivind Triel	9FDE769626DC8064	26806
Verified (Factored)	2001-09-10	Brian J. Beesley	9FDE769626DC8064	131269

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	9685EF043A838636	2	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	9685EF043A838636	2	158274	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	2D29852BF1390D3F	2	163445	5	3
Verified (Factored)	2021-02-03	mnd9	2D29852BF1390D3F	3	25696	5	3
Verified (Factored)	2021-02-03	mrh	2D29852BF1390D3F	3	17570	5	3
Verified	2022-11-27	Kevin_9611	2D29852BF1390D3F	4	171802	5	3

History

Date	User	Type	Result
2022-11-27	curtisc	CERT	PRP Certification Proof certified good
2022-11-27	Kevin_9611	C-PRP	M236659/233563230433297896071/2565227361699849726799/57547960798187163038010612311/85437293220523171722086682527 : 2D29852BF1390D3F PRP proof power = 5 PRP: Verified Proof certified good
2022-11-26	Nesowa	F-ECM	Factor: 85437293220523171722086682527 / (ECM curve 4, B1=250000, B2=235419030, Sigma=6866425210393008)
2022-04-01	Oliver Kruse	NF-PM1	B1=30000000, B2=10120247026890
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-07-11	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000, E=24
2021-02-03	arnaud	CERT	PRP Certification Proof certified good
2021-02-03	mrh	C-PRP	M236659/233563230433297896071/2565227361699849726799/57547960798187163038010612311 : 2D29852BF1390D3F PRP proof power = 5 PRP: Verified (Factored) Proof certified good
2021-02-03	mnd9	C-PRP	M236659/233563230433297896071/2565227361699849726799/57547960798187163038010612311 : 2D29852BF1390D3F PRP: Verified (Factored) PRP without proof (small exponent)
2021-02-03	seatsea	F-ECM	Factor: 57547960798187163038010612311 / (ECM curve 4, B1=250000, B2=38500000, Sigma=7120512280579580)
2020-04-17	Oliver Kruse	C-PRP	M236659/233563230433297896071/2565227361699849726799 : 2D29852BF1390D3F PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M236659/233563230433297896071/2565227361699849726799 : 9685EF043A838636 PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M236659/known_factors : 9685EF043A838636 PRP without proof (not generated)
2014-12-19	TJAOI	F-ECM	Factor: 2565227361699849726799
2009-04-28	Sturle Sunde	F-ECM	Factor: 233563230433297896071
2009-01-24	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-01	Sturle Sunde	NF	no factor from 2^58 to 2^59