2 484 197 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
19873577	8	24.2	old
12489438324481397579073671	26	83.4	2018-03-03 04:37:04

ECM

Digits	B1	Curves
25	50000	59 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-14	Oliver Kruse	3B53855A8AB8E879	1	637860	5	3
Verified (Factored)	2017-11-29	ATH	3B53855A8AB8E879	1	1259448	5	3
Verified	2018-03-04	Daniel Bamberger	3B53855A8AB8E879	2	925141	5	3

History

Date	User	Type	Result
2023-03-21	Denial140	NF-PM1	B1=1000000, B2=6493617900
2022-08-18	USAFSS	NF-PM1	B1=224000, B2=203668920
2018-03-04	Daniel Bamberger	C-PRP	M2484197/19873577/12489438324481397579073671 : 3B53855A8AB8E879 PRP: Verified PRP without proof (not generated)
2018-03-03	ATH	F-ECM	Factor: 12489438324481397579073671 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-29	ATH	C-PRP	M2484197/19873577 : 3B53855A8AB8E879 PRP: Verified PRP without proof (not generated)
2017-10-14	Oliver Kruse	C-PRP	M2484197/19873577 : 3B53855A8AB8E879 PRP: Verified PRP without proof (not generated)