M4 036 468 391 Mersenne number exponent details

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is 2 ^4036468391 - 1

has 1215098063 decimal digits

takes 1,012,667.695 GHz-days to do one PRP test

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	2⁷¹	0.1184	54.9296%	-	-	-	-	0.1184	54.9296%
Target	2⁹²	248,478.1392	65.2174%	20000000	6000000000	125,796.0639	4.2397%	374,274.2031	66.6921%
Difference	-21	-248,478.0208	-10.2878%	-20000000	-6000000000	-125,796.0639	-4.2397%	-374,274.0847	-11.7625%

Known prime factors (1 factor, 39.8 bits, 0.00000099% 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
4036468391	976825350623	12	39.829	121 11²	2012-08-20	121	121	2.337e-11	0.0440	0.0896

P-1 results:
No P-1 results for M4036468391

Trial Factoring results:

			Bits		Factor			GHz-Days		worth
date	userid	compid	from	to	factor	bits*	digits	spent	saved	worth
2019-06-30			2³⁹	2⁴⁰	976825350623	39.829	12	5.22719e-12	238,208	1.11835e-11
2022-12-06	slaur	palvi2-rtx	2⁷⁰	2⁷¹		-	-	0.059	-	-

ECM factoring results:
No ECM results for M4036468391

Lucas-Lehmer results:
No L-L results for M4036468391

PRP results:
No PRP results for M4036468391

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

10¹

10²

10³

10¹

10²

10³

TF factor-bounds graph:

2⁷¹

2⁴⁰

this exponent TF target: 92

2⁵⁰

2⁶⁰

2⁷⁰

2⁸⁰

2⁹⁰

2¹⁰⁰

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Last modified: 2023-10-02T12:12:48+00:00