6 906 943 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
330382027011213679346431	24	78.1	2021-11-22 20:55:18

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-08-31	Steven Piercy	54FE377768B98B2A	1408770
Verified (Factored)	2002-04-14	chris clark	54FE377768B98B2A	2138763

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-11-30	RichD0	4C8818F0EF33CC1C	1	4082416	5	3

P-1 factors

Date	Factor	B1	B2
2021-11-22	330382027011213679346431	4000000	110000000
2021-11-30	330382027011213679346431	4000000	414323910

History

Date	User	Type	Result
2021-11-30	John Airey	CERT	PRP Certification Proof certified good
2021-11-30	Seth_Tr	F-PM1	Factor: 330382027011213679346431 / (P-1, B1=4000000, B2=414323910)
2021-11-30	RichD0	C-PRP	M6906943/330382027011213679346431 : 4C8818F0EF33CC1C PRP proof power = 8 PRP: Verified Proof certified good
2021-11-22	Seth_Tr	F-PM1	Factor: 330382027011213679346431 / (P-1, B1=4000000, B2=110000000, E=12)
2021-09-25	SRBase	NF	no factor from 2^71 to 2^72
2021-08-11	SRBase	NF	no factor from 2^70 to 2^71
2020-12-21	takahashi	NF	no factor from 2^69 to 2^70
2020-01-08	takahashi	NF-PM1	B1=600000, B2=12000000, E=12
2019-12-11	mnd9	NF	no factor from 2^68 to 2^69
2018-02-27	-Anonymous-	NF	no factor from 2^67 to 2^68
2016-04-01	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-21	VictordeHollander	NF	no factor from 2^65 to 2^66
2014-02-18	lycorn	NF	no factor from 2^64 to 2^65
2014-02-09	Nesowa	NF	no factor from 2^63 to 2^64
2011-11-20	James Heinrich	NF-PM1	B1=130000, B2=2665000, E=6