928 427 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
12022368797086881939729641	26	83.3	2015-07-21 04:54:19

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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)		David Slowinski	A3A	0
Verified (Factored)		Alex and Nick Myrman	6A3A	0
Verified (Factored)		Ian W Halliday	44012F8BA4516A3A	0
Verified (Factored)	2002-01-08	Marc Getty / Phil Fizur	44012F8BA4516A3A	794637
Verified (Factored)	2015-04-11	MadPoo	44012F8BA4516A3A	551559

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	Oliver Kruse	45F85441C0E2FE28	1	0	1	3
Verified	2017-10-14	Oliver Kruse	45F85441C0E2FE28	1	747956	1	3
Verified	2017-12-22	ATH	45F85441C0E2FE28	1	635418	1	3
Unverified (Reliable)	2020-04-23	Oliver Kruse	31396BBDBD873B__	1	875061	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2020-04-23	Oliver Kruse	C-PRP	M928427/12022368797086881939729641 : 31396BBDBD873B__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-22	ATH	C-PRP	M928427/12022368797086881939729641 : 45F85441C0E2FE28 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-14	Oliver Kruse	C-PRP	M928427/12022368797086881939729641 : 45F85441C0E2FE28 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M928427/12022368797086881939729641 : 45F85441C0E2FE28 PRP: Unverified (Reliable) PRP without proof (not generated)
2015-07-21	SRJ2877	F-ECM	Factor: 12022368797086881939729641 / (ECM curve 112, B1=50000, B2=5000000)
2015-04-11	MadPoo	C-LL	44012F8BA4516A3A
2014-08-25	lycorn	NF	no factor from 2^61 to 2^62
2014-01-12	alpertron	NF-PM1	B1=10000000, B2=500000000, E=12
2013-10-11	David Campeau	NF-PM1	B1=965000, B2=25090000, E=12
2011-10-22	Joss	NF-PM1	B1=731607
2011-07-13	Joss	NF-PM1	B1=219482
2011-06-02	Joss	NF-PM1	B1=200000
2010-05-18	Architects Cubed	NF	no factor from 2^60 to 2^61