8 192 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 4 known prime factors

Factored

Factor	Digits	Bits	Date
2710954639361	13	41.3	1974
2663848877152141313	19	61.2	1991-01-05
3603109844542291969	19	61.6	1991-05-09
319546020820551643220672513	27	88.0	1995-06-16

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	16550 / 16550
55	110000000	40830 / 40830
60	260000000	105362 / 105362
65	800000000	58064 / 194238

Estimated T-Level: 61.5 ⓘ

TF below 2^199 is very unlikely to find new factors due to ECM effort.

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2025-03-17	anonymous2	factor ECM small	C1S1	6.07 %	2025-03-30
2025-03-17	anonymous2	factor ECM small		0.00 %	2025-03-17
2025-02-06	Catherine Cowie	factor ECM small		0.00 %	2025-02-16

History

Date	User	Type	Result
2025-03-25	Anton Repko	NF-PM1	B1=16000000000000, B2=18001361365110092970
2021-08-27	H Michaelson	NF-PP1	Start=156/17, B1=1000000000, B2=100000000000
2021-05-01	ATH	NF-PP1	Start=6/5, B1=5000000000, B2=300000000000
2021-04-22	ATH	NF-PP1	Start=2/7, B1=2000000000, B2=200000000000