2 462 737 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 4 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
456414122737	12	38.7	old
40229887573807	14	45.2	2008-09-30 14:37:03
175563362261609401279	21	67.3	2022-02-01 08:38:02
7437996661502313038129	22	72.7	2025-03-05 13:00:41

ECM

Digits	B1	Curves
25	50000	237 / 280

Estimated T-Level: 24.2 ⓘ

TF below 2^75 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	PRP without proof (not generated)	2017-10-13	Oliver Kruse	D78A420FB6368E09	2	795000	5	3
Factored	PRP without proof (not generated)	2017-11-29	nokno	083CE2139CCB599A	2	0	1	3
Factored	PRP without proof (not generated)	2017-11-29	storm5510	D78A420FB6368E09	2	539920	5	3
Factored	PRP without proof (not generated)	2017-12-04	kkmrkkblmbrbk	083CE2139CCB599A	2	1052585	1	3
Factored	Certified Good	2022-02-01	SRJ2877	D78A420FB6368E09	3	2382308	5	3
Verified	Certified Good	2025-03-05	feather	D78A420FB6368E09	4	1968597	5	3

History

Date	User	Type	Result
2025-03-05	Pierre Abbat	CERT	Proof certified good
2025-03-05	feather	C-PRP	M2462737/456414122737/40229887573807/175563362261609401279/7437996661502313038129 : D78A420FB6368E09 Proof Certified Good Proof Power: 7
2025-03-05	feather	F-ECM	Factor: 7437996661502313038129 / ECM curve 4, B1=65384, B2=16814655, Edwards Sigma=7104866957874256
2022-02-02	tchiwam	CERT	Proof certified good
2022-02-01	SRJ2877	C-PRP	M2462737/456414122737/40229887573807/175563362261609401279 : D78A420FB6368E09 Proof Certified Good Proof Power: 7
2022-02-01	TJAOI	F	Factor: 175563362261609401279
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-04	kkmrkkblmbrbk	C-PRP	M2462737/456414122737/40229887573807 : 083CE2139CCB599A
2017-11-29	storm5510	C-PRP	M2462737/456414122737/40229887573807 : D78A420FB6368E09
2017-11-29	nokno	C-PRP	M2462737/456414122737/40229887573807 : 083CE2139CCB599A
2017-10-13	Oliver Kruse	C-PRP	M2462737/456414122737/40229887573807 : D78A420FB6368E09
2008-09-30	markr	F	Factor: 40229887573807