101 397 853 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
2128112351039622031165391	25	80.8	2020-12-03 21:45:13

P-1 factors

Date	Factor	B1	B2
2020-12-03	2128112351039622031165391	750000	750000

History

Date	User	Type	Result
2020-12-03	ky0uraku	F-PM1	Factor: 2128112351039622031165391 / (P-1, B1=750000)
2020-10-05	penlu	NF	no factor from 2^75 to 2^76
2020-10-05	penlu	NF	no factor from 2^74 to 2^75
2020-03-29	SRBase	NF	no factor from 2^73 to 2^74
2019-12-05	TheGazMan	NF	no factor from 2^72 to 2^73
2017-09-23	el grocco	NF	no factor from 2^71 to 2^72
2014-12-08	shauge	NF	no factor from 2^70 to 2^71
2014-06-07	webbert	NF	no factor from 2^69 to 2^70
2014-01-06	-Anonymous-	NF	no factor from 2^68 to 2^69
2013-10-26	-Anonymous-	NF	no factor from 2^67 to 2^68
2013-10-25	g0b	NF	no factor from 2^66 to 2^67
2012-04-15	OS1	NF	no factor from 2^65 to 2^66
2010-08-13	Torchwood Institute	NF	no factor from 2^64 to 2^65
2010-03-01	1997rj7	NF	no factor from 2^63 to 2^64