M69 160 661 Mersenne number exponent details

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is 2 ^69160661 - 1

has 20819434 decimal digits

takes 184.909 GHz-days to do one PRP test

Last-known PrimeNet details:

Exponent is not assigned to anyone

0 primality tests remaining

	Residue	Status
L-L	-unknown-	-unknown-
PRP	-unknown-	-unknown-

	Trial Factoring			P-1 Factoring				Combined
	Limit	GHz-days	Probability	B1	B2	GHz-days	Probability	GHz-days	Probability
Actual	2⁶⁷	0.4296	59.7015%	-	-	-	-	0.4296	59.7015%
Target	2⁷⁴	55.3185	63.5135%	450000	15000000	4.8177	3.9440%	60.1362	64.9525%
Difference	-7	-54.8889	-3.8120%	-450000	-15000000	-4.8177	-3.9440%	-59.7066	-5.2510%

Known prime factors (1 factor, 32.4 bits, 0.00004680% known):

Remaining cofactor is PRP status unknown

						P-1		GHz-days
exponent	factor	digits	bits*	k	date found	min B1	min B2	min. TF	min. P-1	normal P-1
69160661	5532852881	10	32.365	40 2³ × 5	-	8	8	8.345e-12	3.101e-5	6.312e-5

P-1 results:
No P-1 results for M69160661

Trial Factoring results:
No TF results for M69160661

ECM factoring results:
No ECM results for M69160661

Lucas-Lehmer results:
No L-L results for M69160661

PRP results:
No PRP results for M69160661

P-1 factor-bounds graph:

X = B1; Y = B2
size of marker relates to size of factor
mouse-over any factor marker (circle) to see additional info
mouse-over any stage bound text to see additional info

10⁰

10¹

10⁰

10¹

TF factor-bounds graph:

this exponent TF target: 74

TF double-checked to: 67.8

2⁵⁰

2⁶⁰

2⁷⁰

2⁸⁰

Last modified: 2023-04-26T21:34:10+00:00