56 397 763 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
2504201457301792335530804441137	31	101.0	2018-07-04 00:37:51

Status	Date	User	Residue	Shift
Verified (Factored)	2012-05-04	curtisc	2332F6EA50AD98F2	36767461

P-1 factors

Date	Factor	B1	B2
2018-07-04	2504201457301792335530804441137	1000000	20000000

History

Date	User	Type	Result
2018-07-04	Sid & Andy	F-PM1	Factor: 2504201457301792335530804441137 / (P-1, B1=1000000, B2=20000000, E=6)
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^63
2016-01-22	-Anonymous-	NF	no factor from 2^72 to 2^73
2012-05-04	curtisc	C-LL	2332F6EA50AD98F2
2012-03-21	curtisc	NF-PM1	B1=690000
2011-11-15	Aaron Haviland	NF	no factor from 2^71 to 2^72
2011-11-15	Aaron Haviland	NF	no factor from 2^70 to 2^71
2011-06-15	Xyzzy	NF	no factor from 2^69 to 2^70
2011-04-18	Torchwood Institute	NF	no factor from 2^68 to 2^69
2010-01-18	Sturle Sunde	NF	no factor from 2^67 to 2^68
2008-07-26	Sturle Sunde	NF	no factor from 2^66 to 2^67
2008-07-25	Sturle Sunde	NF	no factor from 2^65 to 2^66
2008-07-24	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-07-23	Sturle Sunde	NF	no factor from 2^63 to 2^64