1 150 871 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
2301743	7	21.1	old
528914142857182165081513	24	78.8	2020-08-21 10:52:00
3049688186448468458562703	25	81.3	2017-09-01 10:40:47

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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-29	Oliver Kruse	B25E9CD170EBD072	2	0	1	3
Verified (Factored)	2017-10-17	Oliver Kruse	B25E9CD170EBD072	2	282791	1	3
Verified (Factored)	2018-01-02	ATH	B25E9CD170EBD072	2	475727	1	3
Verified	2020-08-21	ATH	23704ACD0E34176A	3	20617	5	3
Verified	2020-08-21	ANONYMOUS	23704ACD0E34176A	3	549865	5	3

History

Date	User	Type	Result
2020-08-21	Ben Delo	CERT	PRP Certification Proof certified good
2020-08-21	ANONYMOUS	C-PRP	M1150871/2301743/528914142857182165081513/3049688186448468458562703 : 23704ACD0E34176A PRP: Verified PRP without proof (not generated)
2020-08-21	ATH	C-PRP	M1150871/2301743/3049688186448468458562703/528914142857182165081513 : 23704ACD0E34176A PRP proof power = 6 PRP: Verified Proof certified good
2020-08-21	TJAOI	F-ECM	Factor: 528914142857182165081513 / (ECM curve 27, B1=250000, B2=25000000)
2018-01-02	ATH	C-PRP	M1150871/2301743/3049688186448468458562703 : B25E9CD170EBD072 PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M1150871/2301743/3049688186448468458562703 : B25E9CD170EBD072 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1150871/2301743/3049688186448468458562703 : B25E9CD170EBD072 PRP: Verified PRP without proof (not generated)
2017-09-01	TJAOI	F-ECM	Factor: 3049688186448468458562703 / (ECM curve 13, B1=50000, B2=5000000)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12