1 970 459 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
17372559655337	14	44.0	old
44602495935268937	17	55.3	2015-01-17 16:48:12
44268839744611456043863207	26	85.2	2022-08-02 10:13:30

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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	Shift	Type	Base
Verified (Factored)	2025-09-02	Kriesel	5A148DFBFBA39DCA	0	1	3

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-05	Oliver Kruse	3634E70231C014A5	2	0	1	3
Verified (Factored)	2017-11-12	kkmrkkblmbrbk	3634E70231C014A5	2	573639	1	3
Verified	2022-08-03	LordJulius	5A148DFBFBA39DCA	3	321031	5	3

History

Date	User	Type	Result
2025-09-03	Jurzal	CERT	PRP Certification CERT proof power = 6 Proof certified good
2025-09-02	Kriesel	C-PRP	5A148DFBFBA39DCA PRP proof power = 6 PRP: Verified (Factored) Proof certified good
2023-10-16	USAFSS	NF-PM1	B1=672000, B2=647447724
2022-08-12	USAFSS	NF-PM1	B1=132000, B2=134381520
2022-08-03	hordkhen	CERT	PRP Certification Proof certified good
2022-08-03	LordJulius	C-PRP	M1970459/17372559655337/44602495935268937/44268839744611456043863207 : 5A148DFBFBA39DCA PRP proof power = 7 PRP: Verified Proof certified good
2022-08-02	TJAOI	F-ECM	Factor: 44268839744611456043863207 / (ECM curve 37, B1=50000, B2=7500000)
2017-11-12	kkmrkkblmbrbk	C-PRP	M1970459/17372559655337/44602495935268937 : 3634E70231C014A5 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1970459/17372559655337/44602495935268937 : 3634E70231C014A5 PRP: Verified (Factored) PRP without proof (not generated)
2015-01-17	TJAOI	F	Factor: 44602495935268937 / TF: 55-56