3 928 487 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
102140663	9	26.6	old
532513221774381167	18	58.9	2015-10-09 11:04:16
4424558155076789432797767913	28	91.8	2022-05-23 20:28:55

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	0700E03C38DC518D	2	0	1	3
Verified (Factored)	2017-12-30	Oliver Kruse	0700E03C38DC518D	2	454900	1	3
Verified	2022-05-29	Poao	7A0D8D79CFBA7EB4	3	2956404	5	3

P-1 factors

Date	Factor	B1	B2
2022-05-23	4424558155076789432797767913	100000	119860650

History

Date	User	Type	Result
2022-10-04	Joss	NF-PM1	B1=1000000, B2=150796800
2022-05-30	blaq	CERT	PRP Certification Proof certified good
2022-05-29	Poao	C-PRP	M3928487/102140663/532513221774381167/4424558155076789432797767913 : 7A0D8D79CFBA7EB4 PRP proof power = 7 PRP: Verified Proof certified good
2022-05-23	Joss	F-PM1	Factor: 4424558155076789432797767913 / (P-1, B1=100000, B2=119860650)
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-02	Joss	NF-PM1	B1=90000
2017-12-30	Oliver Kruse	C-PRP	M3928487/102140663/532513221774381167 : 0700E03C38DC518D PRP: Verified (Factored) PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3928487/102140663/532513221774381167 : 0700E03C38DC518D PRP: Verified (Factored) PRP without proof (not generated)
2015-10-09	TJAOI	F	Factor: 532513221774381167 / TF: 58-59