4 719 839 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
9439679	7	23.2	old
10619637751	11	33.3	2008-09-08 00:11:12
20234440656257	14	44.2	2008-09-30 21:36:05
9098598873063240744823	22	72.9	2019-04-22 16:41:57

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-18	Ducho_YYZ	BA8B91EE5C4F584A	3	1797012	5	3
Verified (Factored)	2018-01-05	kkmrkkblmbrbk	BA8B91EE5C4F584A	3	2088310	5	3
Verified	2019-04-22	ATH	BA8B91EE5C4F584A	4	2130719	5	3

History

Date	User	Type	Result
2023-09-19	USAFSS	NF-PM1	B1=240000, B2=91991760
2019-04-22	ATH	C-PRP	M4719839/9439679/10619637751/20234440656257/9098598873063240744823 : BA8B91EE5C4F584A PRP: Verified PRP without proof (not generated)
2019-04-22	ATH	F-ECM	Factor: 9098598873063240744823 / (ECM curve 3, B1=50000, B2=5000000, Sigma=3496521132735595)
2018-01-05	kkmrkkblmbrbk	C-PRP	M4719839/9439679/10619637751/20234440656257 : BA8B91EE5C4F584A PRP: Verified PRP without proof (not generated)
2017-11-18	Ducho_YYZ	C-PRP	M4719839/9439679/10619637751/20234440656257 : BA8B91EE5C4F584A PRP: Verified PRP without proof (not generated)
2008-09-30	markr	F	Factor: 20234440656257
2008-09-08	Will Edgington	F	Factor: 10619637751