25 560 607 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
440166110722416966183600553	27	88.5	2021-08-16 04:02:07

Status	Date	User	Residue	Shift
Verified (Factored)	2006-01-15	Steven Giles	6418CECB2F951279	8340693
Verified (Factored)	2010-10-13	pnti	6418CECB2F951279	24615167

P-1 factors

Date	Factor	B1	B2
2021-08-16	440166110722416966183600553	1200000	79200000

History

Date	User	Type	Result
2021-08-16	Dylan Delgado	F-PM1	Factor: 440166110722416966183600553 / (P-1, B1=1200000, B2=79200000)
2021-06-26	mikr	NF	no factor from 2^70 to 2^71
2017-06-09	ramgeis	NF	no factor from 2^69 to 2^70
2017-06-09	ramgeis	NF	no factor from 2^68 to 2^69
2016-01-30	VictordeHollander	NF	no factor from 2^67 to 2^68
2010-10-13	pnti	C-LL	6418CECB2F951279