84 131 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
168263	6	17.4	old
232539757932351493503371454208853898919	39	127.5	2022-05-25 22:59:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	719 / 1566

Estimated T-Level: 32.3 ⓘ

TF below 2^102 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	44C33FD566235E71	1	0	1	3
Verified (Factored)	2017-10-13	kkmrkkblmbrbk	44C33FD566235E71	1	58190	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	C8B806A90179EBE7	1	22638	5	3
Verified (Factored)	2022-05-12	Jorge Coveiro	C8B806A90179EBE7	1	61224	5	3
Verified	2022-05-26	aperson1	C8B806A90179EBE7	2	42488	5	3
Verified	2022-05-26	George Woltman	C8B806A90179EBE7	2	19967	5	3
Verified	2022-05-26	Pham Cong Tai	C8B806A90179EBE7	2	43982	5	3

P-1 factors

Date	Factor	B1	B2
2022-05-25	232539757932351493503371454208853898919	1000000000	80803341568950

History

Date	User	Type	Result
2024-01-20	masser	NF-PP1	Start=122/53, B1=52000000, B2=2756000000
2024-01-17	masser	NF-PP1	Start=6/5, B1=26000000, B2=1378000000
2024-01-16	masser	NF-PP1	Start=2/7, B1=13000000, B2=689000000
2022-05-26	Pham Cong Tai	C-PRP	M84131/168263/232539757932351493503371454208853898919 : C8B806A90179EBE7 PRP: Verified PRP without proof (small exponent)
2022-05-26	George Woltman	C-PRP	M84131/168263/232539757932351493503371454208853898919 : C8B806A90179EBE7 PRP: Verified PRP without proof (small exponent)
2022-05-26	aperson1	C-PRP	M84131/168263/232539757932351493503371454208853898919 : C8B806A90179EBE7 PRP: Verified PRP without proof (small exponent)
2022-05-25	George Woltman	F-PM1	Factor: 232539757932351493503371454208853898919 / (P-1, B1=1000000000, B2=80803341568950)
2022-05-12	Jorge Coveiro	C-PRP	M84131/168263 : C8B806A90179EBE7 PRP: Verified PRP without proof (small exponent)
2022-05-06	George Woltman	NF-PM1	B1=1000000000
2020-04-17	Oliver Kruse	C-PRP	M84131/168263 : C8B806A90179EBE7 PRP: Verified PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M84131/168263 : 44C33FD566235E71 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M84131/168263 : 44C33FD566235E71 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M84131/168263 : 44C33FD566235E71 PRP without proof (not generated)
2016-11-11	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12