62 347 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
563408890409	12	39.0	old
2461001280941490494321	22	71.1	2010-04-30 00:28:59
4306392942418691358877023401	28	91.8	2014-04-30 20:51:54
430809479076090420559012782294675049	36	118.4	2016-10-16 15:18:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	566 / 4588

Estimated T-Level: 35.6 ⓘ

TF below 2^113 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	AC8CE6D43C6E9A19	4	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	AC8CE6D43C6E9A19	4	0	1	3
Verified	2017-12-07	ATH	AC8CE6D43C6E9A19	4	25708	1	3
Verified	2020-04-17	Oliver Kruse	B8765570DA1FA379	4	15200	5	3
Verified	2024-02-03	Wentao Huang	B8765570DA1FA379	4	51470	5	3

P-1 factors

Date	Factor	B1	B2
2016-10-16	430809479076090420559012782294675049	100000000	2000000000

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M62347/563408890409/2461001280941490494321/4306392942418691358877023401/430809479076090420559012782294675049 : B8765570DA1FA379 PRP: Verified PRP without proof (small exponent)
2022-11-03	George Woltman	NF-PM1	B1=1000000000, B2=92454784812390
2022-10-31	George Woltman	NF-PM1	B1=1000000000
2021-04-26	ATH	NF-PP1	Start=2/7, B1=10000000, B2=1000000000
2020-04-17	Oliver Kruse	C-PRP	M62347/563408890409/2461001280941490494321/4306392942418691358877023401/430809479076090420559012782294675049 : B8765570DA1FA379 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M62347/563408890409/2461001280941490494321/4306392942418691358877023401/430809479076090420559012782294675049 : AC8CE6D43C6E9A19 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M62347/563408890409/2461001280941490494321/4306392942418691358877023401/430809479076090420559012782294675049 : AC8CE6D43C6E9A19 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M62347/known_factors : AC8CE6D43C6E9A19 PRP without proof (not generated)
2016-10-16	kkmrkkblmbrbk	F-PM1	Factor: 430809479076090420559012782294675049 / (P-1, B1=100000000, B2=2000000000, E=12)
2014-04-30	TJAOI	F-ECM	Factor: 4306392942418691358877023401
2010-04-30	James Hintz	F-ECM	Factor: 2461001280941490494321