1 834 109 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
352300836243817	15	48.3	old
1812307379629887877553	22	70.6	2021-02-26 12:32:50

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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)	2017-10-04	Oliver Kruse	2BC326AC25E2C0BA	1	0	1	3
Verified (Factored)	2017-11-06	ATH	2BC326AC25E2C0BA	1	1752925	1	3
Verified	2021-02-26	riccardo uberti	BF2C11A1CBE366C8	2	1204042	5	3

History

Date	User	Type	Result
2021-02-26	riccardo uberti	NF-PM1	B1=2000000, B2=60000000, E=12
2021-02-26	curtisc	CERT	PRP Certification Proof certified good
2021-02-26	riccardo uberti	C-PRP	M1834109/352300836243817/1812307379629887877553 : BF2C11A1CBE366C8 PRP proof power = 7 PRP: Verified Proof certified good
2021-02-26	seatsea	F-ECM	Factor: 1812307379629887877553 / (ECM curve 3, B1=50000, B2=6150000, Sigma=3727977481100242)
2017-11-06	ATH	C-PRP	M1834109/352300836243817 : 2BC326AC25E2C0BA PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1834109/352300836243817 : 2BC326AC25E2C0BA PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12