3 837 371 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
7674743	7	22.9	old
88732770362158523201506049	26	86.2	2019-06-28 21:33:11

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	7DDB8DDB9384B102	1	0	1	3
Verified (Factored)	2017-12-18	Oliver Kruse	7DDB8DDB9384B102	1	2433948	1	3
Verified	2019-06-28	ATH	C22F671703D54435	2	303338	5	3
Verified	2019-06-29	kkmrkkblmbrbk	C22F671703D54435	2	2705313	5	3

P-1 factors

Date	Factor	B1	B2
2019-06-28	88732770362158523201506049	200000	0

History

Date	User	Type	Result
2022-05-17	Joss	NF-PM1	B1=500000, B2=130364850
2022-02-13	Joss	NF	no factor from 2^67 to 2^68
2019-06-29	kkmrkkblmbrbk	C-PRP	M3837371/7674743/88732770362158523201506049 : C22F671703D54435 PRP: Verified PRP without proof (not generated)
2019-06-28	ATH	C-PRP	M3837371/7674743/88732770362158523201506049 : C22F671703D54435 PRP: Verified PRP without proof (not generated)
2019-06-28	Joss	F-PM1	Factor: 88732770362158523201506049 / (P-1, B1=200000)
2017-12-18	Oliver Kruse	C-PRP	M3837371/7674743 : 7DDB8DDB9384B102 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3837371/7674743 : 7DDB8DDB9384B102 PRP: Verified PRP without proof (not generated)