302 983 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
23231504678974583	17	54.4	old
239114626735484934813761927	27	87.6	2021-11-06 02:07:24
3507652753648623901509994297	28	91.5	2015-02-13 11:25:09

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	435 / 640

Estimated T-Level: 28.4 ⓘ

TF below 2^89 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-24	Oliver Kruse	1E9C8CEF0BE54D95	2	0	1	3
Verified (Factored)	2017-10-12	Oliver Kruse	1E9C8CEF0BE54D95	2	273207	1	3
Verified (Factored)	2017-12-11	ATH	1E9C8CEF0BE54D95	2	34951	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	F38B8299086F4EC4	2	70081	5	3
Verified	2021-11-06	SRJ2877	F38B8299086F4EC4	3	96436	5	3

History

Date	User	Type	Result
2024-02-23	Denial140	NF-PM1	B1=10000000, B2=206662045590
2024-02-22	Denial140	NF-PM1	B1=10000000
2023-03-15	Denial140	NF-PM1	B1=1000000, B2=65871826020
2022-02-06	Lisander Viaene	NF-PM1	B1=50000
2021-11-06	Yoon	CERT	PRP Certification Proof certified good
2021-11-06	SRJ2877	C-PRP	M302983/23231504678974583/239114626735484934813761927/3507652753648623901509994297 : F38B8299086F4EC4 PRP proof power = 5 PRP: Verified Proof certified good
2021-11-06	nordi	F-ECM	Factor: 239114626735484934813761927 / (ECM curve 121, B1=250000, B2=36750000, Sigma=1467747107995716)
2021-04-28	nordi	NF-PP1	Start=6/5, B1=10000000, B2=1010000000
2021-04-24	nordi	NF-PP1	Start=2/7, B1=10000000, B2=1010000000
2020-04-17	Oliver Kruse	C-PRP	M302983/23231504678974583/3507652753648623901509994297 : F38B8299086F4EC4 PRP: Verified (Factored) PRP without proof (small exponent)
2017-12-11	ATH	C-PRP	M302983/23231504678974583/3507652753648623901509994297 : 1E9C8CEF0BE54D95 PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-12	Oliver Kruse	C-PRP	M302983/23231504678974583/3507652753648623901509994297 : 1E9C8CEF0BE54D95 PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M302983/23231504678974583/3507652753648623901509994297 : 1E9C8CEF0BE54D95 PRP without proof (not generated)
2015-02-13	TJAOI	F-ECM	Factor: 3507652753648623901509994297 / (ECM curve 3, B1=50000, B2=5000000)