43 827 239 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
154666154457246912380241106605933409	36	116.9	2018-12-04 06:58:08

Status	Date	User	Residue	Shift
Verified (Factored)	2010-11-17	David J. Stucki	CCA2B3F7192CD0A0	42365067
Verified (Factored)	2017-09-04	Evgeniy Zavialov	CCA2B3F7192CD0A0	39306295

P-1 factors

Date	Factor	B1	B2
2018-12-04	154666154457246912380241106605933409	1000000	20000000

History

Date	User	Type	Result
2018-12-04	Sid & Andy	F-PM1	Factor: 154666154457246912380241106605933409 / (P-1, B1=1000000, B2=20000000, E=6)
2018-08-06	-Anonymous-	NF	no factor from 2^72 to 2^73
2017-09-04	Evgeniy Zavialov	C-LL	CCA2B3F7192CD0A0
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^62
2015-10-09	-Anonymous-	NF	no factor from 2^71 to 2^72
2015-05-12	kracker	NF	no factor from 2^70 to 2^71
2015-04-17	LaurV	NF	no factor from 2^69 to 2^70
2014-04-25	Axelsson	NF	no factor from 2^68 to 2^69
2010-11-17	David J. Stucki	C-LL	CCA2B3F7192CD0A0
2010-01-15	ANONYMOUS	NF-PM1	B1=750000