2 953 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
88591	5	16.4	old
486002993749998304495917053222119	33	108.6	old
1562692644172831910698894852204981908438761422548517899695476786511	67	219.9	2020-01-30 10:33:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	2927 / 16550

Estimated T-Level: 45.9 ⓘ

TF below 2^147 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	88ECBF494EDC4266	2	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	88ECBF494EDC4266	2	360	1	3
Verified	2020-01-30	Jinyuan Wang	B85462F6401AAFBC	3	986	5	3
Verified	2020-01-30	-Anonymous-	B85462F6401AAFBC	3	2113	5	3
Verified	2020-02-02	Luigi Morelli	B85462F6401AAFBC	3	2552	5	3
Verified	2020-04-17	Oliver Kruse	B85462F6401AAFBC	3	2701	5	3

History

Date	User	Type	Result
2021-07-07	ViliamF	NF-PM1	B1=1000000000, B2=191000000000
2020-04-17	Oliver Kruse	C-PRP	M2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC PRP: Verified PRP without proof (small exponent)
2020-02-02	Luigi Morelli	C-PRP	M2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC PRP: Verified PRP without proof (small exponent)
2020-01-30	-Anonymous-	C-PRP	M2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC PRP: Verified PRP without proof (small exponent)
2020-01-30	Jinyuan Wang	C-PRP	M2953/88591/486002993749998304495917053222119/1562692644172831910698894852204981908438761422548517899695476786511 : B85462F6401AAFBC PRP: Verified PRP without proof (small exponent)
2020-01-30	Ryan Propper	F-ECM	Factor: 1562692644172831910698894852204981908438761422548517899695476786511 / (ECM curve 1, B1=850000000)
2017-10-12	kkmrkkblmbrbk	C-PRP	M2953/88591/486002993749998304495917053222119 : 88ECBF494EDC4266 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M2953/88591/486002993749998304495917053222119 : 88ECBF494EDC4266 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M2953/88591/486002993749998304495917053222119 : 88ECBF494EDC4266 PRP without proof (not generated)