308 317 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
43570741807	11	35.3	old
43267636333966474903802177921	29	95.1	2021-10-22 10:13:46

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	422 / 640

Estimated T-Level: 28.3 ⓘ

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)	2017-09-22	Oliver Kruse	8C4EF65BBD1FB3EF	1	0	1	3
Verified (Factored)	2017-10-12	Oliver Kruse	8C4EF65BBD1FB3EF	1	227378	1	3
Verified (Factored)	2017-12-11	ATH	8C4EF65BBD1FB3EF	1	165099	1	3
Verified (Factored)	2020-04-18	Oliver Kruse	0E4297ACE9D80D12	1	180474	5	3
Verified	2021-10-22	nordi	0E4297ACE9D80D12	2	263382	5	3
Verified	2021-10-22	JackBlock	0E4297ACE9D80D12	2	58487	5	3

History

Date	User	Type	Result
2024-02-24	Denial140	NF-PM1	B1=10000000, B2=206662045590
2024-02-22	Denial140	NF-PM1	B1=10000000
2023-03-18	Denial140	NF-PM1	B1=1000000, B2=65871826020
2022-02-06	Lisander Viaene	NF-PM1	B1=50000
2021-10-22	curtisc	CERT	PRP Certification Proof certified good
2021-10-22	JackBlock	C-PRP	M308317/43570741807/43267636333966474903802177921 : 0E4297ACE9D80D12 PRP proof power = 5 PRP: Verified Proof certified good
2021-10-22	Mikhail Ivanov	CERT	PRP Certification Proof certified good
2021-10-22	nordi	C-PRP	M308317/43570741807/43267636333966474903802177921 : 0E4297ACE9D80D12 PRP proof power = 5 PRP: Verified Proof certified good
2021-10-22	nordi	F-ECM	Factor: 43267636333966474903802177921 / (ECM curve 155, B1=250000, B2=36750000, Sigma=1884452759589253)
2020-04-18	Oliver Kruse	C-PRP	M308317/43570741807 : 0E4297ACE9D80D12 PRP: Verified (Factored) PRP without proof (small exponent)
2017-12-11	ATH	C-PRP	M308317/43570741807 : 8C4EF65BBD1FB3EF PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-12	Oliver Kruse	C-PRP	M308317/43570741807 : 8C4EF65BBD1FB3EF PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M308317/43570741807 : 8C4EF65BBD1FB3EF PRP: Verified (Factored) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M308317/43570741807 : 8C4EF65BBD1FB3EF PRP without proof (not generated)