M25 003 247 Mersenne number exponent details

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is 2 ^25003247 - 1

has 7526728 decimal digits

takes 21.426 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	1.1884	62.6866%	-	-	-	-	1.1884	62.6866%
Target	2⁷⁰	9.5568	64.2857%	180000	5000000	0.5500	3.6603%	10.1068	65.5930%
Difference	-3	-8.3684	-1.5991%	-180000	-5000000	-0.5500	-3.6603%	-8.9184	-2.9064%

Known prime factors (1 factor, 29.3 bits, 0.00011709% 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
25003247	650084423	9	29.276	13 13	-	1	13	2.869e-12	2.055e-6	2.529e-6

P-1 results:
No P-1 results for M25003247

Trial Factoring results:
No TF results for M25003247

ECM factoring results:
No ECM results for M25003247

Lucas-Lehmer results:
No L-L results for M25003247

PRP results:
No PRP results for M25003247

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

10²

10³

TF factor-bounds graph:

this exponent TF target: 70

TF double-checked to: 67.8

2⁵⁰

2⁶⁰

2⁷⁰

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