217 369 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
2923849547473	13	41.4	old
999981372830342176622990328481	30	99.7	2020-01-16 12:41:52

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	587 / 640

Estimated T-Level: 29.6 ⓘ

TF below 2^93 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	A1F04B1F668C57E0	1	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	A1F04B1F668C57E0	1	179801	1	3
Verified	2020-01-16	mrh	711268D466634638	2	177857	5	3
Verified	2020-01-17	marssystems	711268D466634638	2	102313	5	3
Verified	2023-08-03	USAFSS	711268D466634638	2	4596	5	3

History

Date	User	Type	Result
2023-08-03	curtisc	CERT	PRP Certification Proof certified good
2023-08-03	USAFSS	C-PRP	M217369/2923849547473/999981372830342176622990328481 : 711268D466634638 PRP proof power = 5 PRP: Verified Proof certified good
2022-03-01	Oliver Kruse	NF-PM1	B1=30000000, B2=10070832992220
2021-05-28	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000
2021-05-02	Dylan Delgado	NF-PM1	B1=6500000, B2=604500000
2020-01-17	marssystems	C-PRP	M217369/2923849547473/999981372830342176622990328481 : 711268D466634638 PRP: Verified PRP without proof (small exponent)
2020-01-16	mrh	C-PRP	M217369/2923849547473/999981372830342176622990328481 : 711268D466634638 PRP: Verified PRP without proof (small exponent)
2020-01-16	Niels_Mache_Nextcloud	F-ECM	Factor: 999981372830342176622990328481 / (ECM curve 1, B1=250000, B2=25000000, Sigma=3003529775962156)
2017-10-12	kkmrkkblmbrbk	C-PRP	M217369/2923849547473 : A1F04B1F668C57E0 PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M217369/2923849547473 : A1F04B1F668C57E0 PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M217369/2923849547473 : A1F04B1F668C57E0 PRP without proof (not generated)