1 833 473 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
55881554500799	14	45.7	old
53962096217560059866671	23	75.5	2021-05-28 18:40:26

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	B384201F229834CD	1	0	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	B384201F229834CD	1	540790	1	3
Verified	2021-05-29	Peter_Jakub	D15BE8B2D446E432	2	712260	5	3

History

Date	User	Type	Result
2021-05-29	Ben Delo	CERT	PRP Certification Proof certified good
2021-05-29	Peter_Jakub	C-PRP	M1833473/55881554500799/53962096217560059866671 : D15BE8B2D446E432 PRP proof power = 7 PRP: Verified Proof certified good
2021-05-28	TJAOI	F-ECM	Factor: 53962096217560059866671 / (ECM curve 26, B1=50000, B2=6600000)
2017-11-06	kkmrkkblmbrbk	C-PRP	M1833473/55881554500799 : B384201F229834CD PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1833473/55881554500799 : B384201F229834CD PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12