1 460 021 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
1076340200777320226873639	25	79.8	2013-09-11 02:52:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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)		Mark Dodrill	EA1920A0F16D7D70	0
Verified (Factored)		David Miller	EA1920A0F16D7D70	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-01	Oliver Kruse	30A5EA435132F1B1	1	0	1	3
Verified	2017-10-27	kkmrkkblmbrbk	30A5EA435132F1B1	1	1022040	1	3

History

Date	User	Type	Result
2017-10-27	kkmrkkblmbrbk	C-PRP	M1460021/1076340200777320226873639 : 30A5EA435132F1B1 PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1460021/1076340200777320226873639 : 30A5EA435132F1B1 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-09-11	Chang Chia-Tche	F-ECM	Factor: 1076340200777320226873639
2011-04-05	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-15	Richard B. Woods	NF	no factor from 2^60 to 2^61
2008-12-27	axn	NF-PM1	B1=1000000, B2=30000000, E=12