2 309 327 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
41567887	8	25.3	old
151699921311371323937	21	67.0	2021-04-10 00:54:22

ECM

Digits	B1	Curves
25	50000	55 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-11	Oliver Kruse	023C2E1B36AED922	1	0	1	3
Verified (Factored)	2017-11-22	kkmrkkblmbrbk	023C2E1B36AED922	1	1540551	1	3
Verified	2021-04-12	Klaus Nordmann	7EC49865FE0DBD3B	2	1643626	5	3
Verified	2021-05-14	ThomRuley	7EC49865FE0DBD3B	2	2003964	5	3

P-1 factors

Date	Factor	B1	B2
2021-04-10	151699921311371323937	5000000	505000000

History

Date	User	Type	Result
2021-05-14	ThomRuley	C-PRP	M2309327/41567887/151699921311371323937 : 7EC49865FE0DBD3B PRP: Verified PRP without proof (not generated)
2021-04-12	Klaus Nordmann	C-PRP	M2309327/41567887/151699921311371323937 : 7EC49865FE0DBD3B PRP proof power = 7 PRP: Verified PRP proof never uploaded
2021-04-10	ViliamF	F-PM1	Factor: 151699921311371323937 / (P-1, B1=5000000, B2=505000000)
2018-02-22	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2017-11-22	kkmrkkblmbrbk	C-PRP	M2309327/41567887 : 023C2E1B36AED922 PRP: Verified PRP without proof (not generated)
2017-10-11	Oliver Kruse	C-PRP	M2309327/41567887 : 023C2E1B36AED922 PRP: Verified PRP without proof (not generated)