27 506 879 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
14397746605187711	17	53.7	old
103597988620163647	18	56.5	2015-04-09 11:50:28
3617633203188348023	19	61.6	2016-05-18 11:05:37
1709205675012237179321	22	70.5	2022-06-21 21:33:20
38765832965729353962641	23	75.0	2022-06-21 21:33:20
30730630318349469040159769	26	84.7	2022-06-21 21:33:20

ECM

Digits	B1	Curves
25	50000	0 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

P-1 factors

Date	Factor	B1	B2
2022-06-21	30730630318349469040159769	285000	34496700
2022-06-21	1709205675012237179321	285000	34496700
2022-06-21	38765832965729353962641	285000	34496700

History

Date	User	Type	Result
2024-01-28	masser	NF-PP1	Start=2/7, B1=50000, B2=3000000
2023-12-09	masser	NF	no factor from 2^71 to 2^73
2022-10-16	masser	F	Factor: 1709205675012237179321 / TF: 69-71
2022-07-22	LordJulius	NF	no factor from 2^66 to 2^67
2022-07-22	LordJulius	NF	no factor from 2^65 to 2^66
2022-07-22	LordJulius	NF	no factor from 2^62 to 2^65
2022-07-21	masser	NF	no factor from 2^67 to 2^69
2022-06-21	masser	F-PM1	Factor: 2036174125816121071359980479118739320526578640539327308453173168258209 / (P-1, B1=285000, B2=34496700)
2016-05-18	TJAOI	F	Factor: 3617633203188348023 / TF: 61-62
2015-04-09	TJAOI	F	Factor: 103597988620163647 / TF: 56-57