339 211 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
3392111	7	21.7	old
8665687854679262404369663	25	82.8	2018-03-23 17:13:18
141264749914237138584828503020969	33	106.8	2021-06-25 05:41:54

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	388 / 640

Estimated T-Level: 28.0 ⓘ

TF below 2^88 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-23	Oliver Kruse	2C12502EB4D5BC2C	1	0	1	3
Verified (Factored)	2017-10-13	kkmrkkblmbrbk	2C12502EB4D5BC2C	1	130134	1	3
Verified (Factored)	2018-03-26	Oliver Kruse	4B97E6C7048FE754	2	55716	5	3
Verified (Factored)	2018-04-07	kracker	4B97E6C7048FE754	2	246483	5	3
Verified	2021-06-26	marssystems	4B97E6C7048FE754	3	256404	5	3

P-1 factors

Date	Factor	B1	B2
2021-06-25	141264749914237138584828503020969	20000000	1820000000

History

Date	User	Type	Result
2021-06-27	George Woltman	F-PP1	Start=2/7, B1=10000000, B2=830000000, Factor: 141264749914237138584828503020969
2021-06-26	chuenkit	CERT	PRP Certification Proof certified good
2021-06-26	marssystems	C-PRP	M339211/3392111/8665687854679262404369663/141264749914237138584828503020969 : 4B97E6C7048FE754 PRP proof power = 5 PRP: Verified Proof certified good
2021-06-25	George Woltman	F-PM1	Factor: 141264749914237138584828503020969 / (P-1, B1=20000000, B2=1820000000)
2018-04-07	kracker	C-PRP	M339211/3392111/8665687854679262404369663 : 4B97E6C7048FE754 PRP: Verified (Factored) PRP without proof (small exponent)
2018-03-26	Oliver Kruse	C-PRP	M339211/3392111/8665687854679262404369663 : 4B97E6C7048FE754 PRP: Verified (Factored) PRP without proof (small exponent)
2018-03-23	TJAOI	F-ECM	Factor: 8665687854679262404369663 / (ECM curve 29, B1=250000, B2=25000000)
2017-10-13	kkmrkkblmbrbk	C-PRP	M339211/3392111 : 2C12502EB4D5BC2C PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-23	Oliver Kruse	C-PRP	M339211/3392111 : 2C12502EB4D5BC2C PRP: Verified (Factored) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M339211/3392111 : 2C12502EB4D5BC2C PRP without proof (not generated)