1 636 501 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
13850362166371765393	20	63.6	2012-02-12 14:11:30

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Barry Wiebe	750719930C00EFE5	0
Verified (Factored)	1998-12-21	Olli Heikkilä	750719930C00EFE5	331739

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-02	Oliver Kruse	6170F8656E45FFAC	1	0	1	3
Verified	2017-11-01	ATH	6170F8656E45FFAC	1	721898	1	3

History

Date	User	Type	Result
2017-11-01	ATH	C-PRP	M1636501/13850362166371765393 : 6170F8656E45FFAC PRP: Verified PRP without proof (not generated)
2017-10-02	Oliver Kruse	C-PRP	M1636501/13850362166371765393 : 6170F8656E45FFAC PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2012-02-12	Axon	F-ECM	Factor: 13850362166371765393
2012-02-12	Axon	NF-PM1	B1=1000000, B2=40000000, E=12
2012-02-12	Axon	NF-PM1	B1=1000000, B2=32000000, E=12
2012-02-12	Axon	NF-PM1	B1=1000000, B2=24000000, E=12
2012-02-12	Axon	NF-PM1	B1=1000000
2012-02-12	Axon	NF-PM1	B1=900000
2012-02-12	Axon	NF-PM1	B1=800000
2012-02-12	Axon	NF-PM1	B1=700000
2012-02-12	Axon	NF-PM1	B1=600000
2012-02-12	Axon	NF-PM1	B1=500000
2012-02-12	Axon	NF-PM1	B1=400000
2012-02-12	Axon	NF-PM1	B1=300000
2012-02-12	Axon	NF-PM1	B1=200000
2012-02-12	Axon	NF-PM1	B1=100000
2010-07-24	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-05-02	Architects Cubed	NF	no factor from 2^60 to 2^61