Great Internet Mersenne Prime Search (GIMPS)

Prime95, also distributed as a command-line utility mprime under FreeBSD and Linux, is a freeware application written by George Woltman. It is used by Great Internet Mersenne Prime Search (GIMPS), a distributed computing project dedicated to Mersenne prime hunting. In overclocking circles, its also commonly used for stability testing.

This repo is a mirror to Free Mersenne Prime Search Software source code for Windows, Linux, FreeBSD, and Mac OS X.

You could download the latest code from GIMPS or release page.

Mirror rank from PrimeNet Top Overall Teams

Top producers for the last year.
This hourly report generated 2026-01-27 12:00 UTC

Rank	Team Name	Total GHz Days	90 day	30 day	7 day	1 day	TF	P-1	LL/PRP	DC	ECM	ECM-F
1	GIMPS.Russia	988731748	⬆ 1				0.4		0.1		99.6
2	Slovakia	691575707	⬆ 1	⬆ 1			0.2	97.6			2.2
3	POLAND	449200405	⬆ 1	⬆ 1	⬆ 1	⬆ 1	0.3	99.1	0.1		0.5
4	PrimeNet	360441247	⬇ 3	⬇ 2	⬇ 1	⬇ 1	0.1	97.5	0.2	0.3	1.8
5	-Too many Ones-	208595223					0.3	93.0			6.6
6	unRAID	33768053	⬆ 1	⬆ 1	⬆ 1			99.5	0.4		0.1
7	Ars Technica Team Prime Rib	33264147	⬇ 1	⬇ 1	⬇ 1		0.1	94.6	0.1	2.4	2.7
8	GIMPSChina	21929776					81.0	12.4	4.1	0.8	1.6
9	One Man Team	16978675						99.5	0.5
10	More Power!!!	14471757					13.7	56.2	1.8	0.7	27.6
11	GW's legions	12745695					0.1	0.9	29.5	0.7	68.9
12	UCM-curtisc	11972685	⬆ 1	⬆ 1	⬆ 1				99.4	0.6
13	Team-Deutschland	11935516	⬇ 1	⬇ 1	⬇ 1		4.0	5.8	0.5	0.1	89.4	0.1
14	TeamUK	7410745					38.6	6.3	18.9	1.2	34.7	0.1
15	szerverem.hu	6885158	⬆ 224	⬆ 109			6.2	39.1	42.7	5.4	6.6
16	Porta Kruse	6331248	⬆ 19	⬆ 3			0.2	0.1		0.1	93.3	6.2
17	GPU to 72	4946491	⬇ 1	⬇ 2			62.7	21.6	0.7	3.7	11.3
18	SpongeBob SquarePants	4097076	⬇ 3	⬇ 2			2.3	31.3	54.7	10.3	1.5
19	Numberphile	2911159	⬇ 1	⬇ 2			31.8	40.5	19.4	6.6	1.3
20	Dutch Power Cows	2316414	⬇ 3	⬇ 2			32.5	31.4	1.2	1.2	33.7
21	tsc	2264305	⬇ 2	⬇ 1			91.2	6.4	1.7	0.2	0.5
22	UKRAINE	2158227	⬇ 2	⬇ 1			35.7	15.0	35.6	13.7
23	Wikipedia	1953091	⬆ 1	⬇ 1			58.5	34.1	4.0	2.3	0.8
24	Swedes Of Primes	1548225	⬇ 2	⬇ 1			0.3	82.9	14.4	2.4
25	GIMPS.USA	1408477	⬇ 2	⬇ 1			5.2	0.2	3.6	2.0	88.9
26	GIMPS.Japan	1344523	⬇ 5	⬇ 1			4.5	0.1	8.0	1.9	85.5
27	GIMPS.Occitania	1295868	⬇ 2	⬇ 1				0.7				99.3
28	MOXA	705371	⬇ 2				98.8		0.9	0.3
29	MATHSareREAL	661429	⬇ 1	⬇ 2			95.5		3.3	1.2
30	MBAi.Cloud	561870	⬇ 1						100.0
31	Rechenkraft.net	496354	⬇ 4	⬇ 2			4.4	61.4	2.8	5.7	25.2	0.5
32	Terry Kim Team	445152	⬆ 1		⬆ 1		98.3		0.9	0.3
33	GIMPS.Korea	437773	⬆ 51	⬆ 3	⬆ 2	⬆ 1	86.3	4.2	8.2	1.0	0.2
34	citizenscience.ru	437165	⬇ 4	⬇ 3	⬇ 2	⬇ 1	82.6	7.3	3.4	0.8	3.3	2.6
35	Buhr	402221	⬆ 1	⬇ 2	⬇ 1		63.9	2.0	20.7	6.3	7.1
36	S485122	312582	⬇ 2	⬇ 1	⬆ 1			95.0		5.0
37	Smoke-it	306652	⬇ 6	⬇ 3	⬇ 1		91.2	6.2	1.9
38	YahsTeam	214427	⬆ 2				87.8		10.2	1.9
39	NerdyGirls	206016	⬆ 9	⬆ 2			3.5	41.5	8.8	46.2
40	Canada	197277	⬆ 1	⬇ 1	⬆ 1			3.8	64.1	30.9
41	Team Tartan	197052	⬆ 1	⬇ 1	⬆ 1				77.0	23.0
42	GIMPS Team Philippines	194105	⬆ 2	⬆ 3	⬆ 1		83.7		2.1	1.8	12.0
43	GIMPS China	189369	⬇ 11	⬇ 6	⬇ 3		95.8		1.2	0.4	2.5
44	randomteam	188950	⬆ 2	⬇ 1							100.0
45	BitMEX Research	168690	⬇ 6	⬇ 3					94.7	5.3
46	nranks	157047	⬇ 1	⬇ 2			45.4	0.8	4.5	0.9	48.4
47	OverclockerAustralia	147192	⬆ 2	⬇ 1			59.7		21.2	15.6
48	Team China	123775	⬆ 6	⬆ 3					99.7	0.3
49	GIMPS.NZ	121483	⬆ 1	⬆ 1			78.8		10.2	11.0
50	Cap'n Entropy's Cavalcade of Wonderment	119948	⬆ 1	⬇ 1			76.7	4.8	16.3	2.2
51	UW Eau Claire	117269	⬆ 188	⬆ 17	⬆ 2				76.5	23.5
52	SASAKI	115300		⬆ 1	⬇ 1		100.0
53	404 - "Primes not Found"	114823	⬆ 18	⬆ 13	⬆ 4	⬆ 2	59.8		40.2
54	Wisconsin	114263	⬇ 1	⬇ 2	⬇ 2	⬇ 1	53.5		26.3	20.1
55	EgyptianPolymaths	113453	⬆ 1	⬇ 1	⬇ 1	⬇ 1	1.3	29.1		0.9	64.0
56	Unicamp	105925	⬆ 18	⬇ 1			73.5	0.3	20.9	5.4
57	Georgia Tech	103956	⬇ 20	⬇ 10	⬇ 2		96.9	0.8	2.2
58	Hungary	95187	⬇ 1	⬇ 2			0.6	0.1	1.9	2.9	94.1
59	Colorado School of Mines	92016	⬆ 77	⬆ 26	⬆ 5		82.7		12.7	4.6
60	GIMPS.France	80413	⬆ 9	⬆ 4	⬆ 2	⬆ 1	13.9	38.6	5.9	24.1	17.2
61	Team Finland	80335	⬇ 23	⬇ 13	⬇ 2	⬇ 1	82.7	0.4	16.5		0.3
62	Net-Work	77815		⬇ 2	⬇ 1		1.3	3.3			87.2
63	SHADO	77371	⬇ 2	⬇ 6					61.3	18.1	12.1	2.4
64	LTT fans	75282	⬇ 4	⬇ 6	⬇ 4		53.4		8.2	2.8	35.6
65	Esperanto	74607	⬇ 7	⬇ 4				23.4	22.1	54.4	0.2
66	UIUC	74120		⬇ 4	⬆ 1				69.0	31.0
67	Eratosthenes Sieve	72719	⬇ 3	⬇ 4	⬇ 1		0.8		99.2
68	Brno University of Technology	66324	⬇ 9	⬇ 9				32.3	56.6	11.1
69	GIMPS.NEO	63267	⬇ 4	⬇ 4					74.6	25.4
70	Team Israel	62609	⬇ 3	⬇ 3			97.1		1.3	1.6
71	AMD Users	58620	⬇ 8		⬆ 1		79.6		14.8	5.6
72	ParadoxZ Commando	58130		⬇ 3	⬇ 1				74.3	25.7
73	Team_Italia	57928	⬆ 2	⬇ 3			2.3		72.4	18.1	2.1	4.4
74	AJ	54494	⬆ 2						74.6	25.4
75	Team Belgium	49448	⬇ 7	⬇ 2			1.6	7.1	39.9	15.2	36.2
76	S147127	48715	⬆ 1				21.4		8.2	70.4
77	ComputerraRU	48552	⬇ 22	⬇ 5			16.2		75.8	8.0
78	Wile E. Coyote	46910	⬆ 3	⬆ 2					80.5	5.6	13.9
79	Team Viet Nam	44848	⬇ 32	⬇ 1			27.2		29.7	32.7	10.4
80	Team Austria	42618	⬇ 7	⬇ 3			98.8			1.2
81	MES-Team	41130	⬇ 11	⬇ 6			72.9	7.3		19.7
82	LimePrime	37828	⬇ 2	⬇ 1				6.9	88.3	4.8
83	socal_prime	35601	⬇ 4		⬆ 1			0.9	67.1	31.9
84	Team H	35116	⬇ 6	⬇ 2	⬇ 1		9.5	1.4	88.6	0.5
85	Hermessz	33784	⬇ 3	⬇ 1			58.7		41.3
86	HardOCP	31362	⬆ 7						78.7	21.3
87	Debian	30070	⬆ 8		⬆ 2				98.2	1.8
88	huskers-gimps	29744	⬆ 12	⬆ 1	⬇ 1				75.6	24.4
89	Small-Team-2000	28389	⬇ 1	⬇ 1	⬇ 1				11.0	89.0
90	Costa Rica	23404	⬇ 1		⬆ 1				72.9	26.8
91	MadPoo	21588	⬇ 48	⬇ 12	⬇ 1			21.8	9.5	68.7
92	ᕙ(⇀‸↼‶)ᕗ	20793	⬆ 52	⬆ 22	⬆ 3	⬆ 2	0.4		99.2	0.4
93	Team Retired	20792	⬆ 1						26.4	10.1
94	Team Norway	20753	⬆ 2		⬇ 2	⬇ 2	82.5			3.7	12.7	1.2
95	Portland State University	19849	⬇ 9	⬇ 3	⬇ 1		20.5	23.7	43.6	12.2
96	PrimitiveRootsCircle	19806	⬆ 9	⬆ 4			33.2		43.6	20.7	2.4
97	Channel 4	19497	⬆ 22	⬆ 6	⬆ 9				85.2	14.8
98	A Single Engineer	19154	⬇ 1		⬆ 1				76.4	23.6
99	NanJing Tech	18715	⬆ 140	⬆ 65	⬇ 2				100.0
100	The Fellowship of Infinity	18696	⬆ 29	⬆ 5	⬇ 2				99.5	0.5
101	Quantus	17892	⬇ 11	⬇ 6			8.3		30.3	26.1		35.3
102	SpartaAlumni	17868	⬇ 11	⬇ 5					71.1	28.9
103	Ozzie Prime	17740	⬇ 11	⬇ 4	⬇ 3			4.8	60.6	12.1		22.5
104	Nerdfighters for Mersenne Primes	16250	⬇ 1		⬆ 1		2.9		80.8	16.3
105	Team Slovenia	16115	⬇ 18	⬇ 9	⬇ 1				76.8	23.2
106	GIMPS.Taiwan	15799	⬇ 7	⬇ 4	⬆ 1				88.4	11.2
107	MurrayInfoSys	15078	⬆ 10	⬆ 2	⬆ 1	⬆ 1			62.4	37.5
108	Spain	14849	⬇ 23	⬇ 17	⬇ 5	⬇ 1	8.2		57.8	34.0
109	Turku	14762	⬇ 7	⬆ 20	⬆ 10	⬆ 3			100.0
110	GIMPS.Portugal	14583	⬇ 3	⬇ 4	⬇ 1	⬇ 1	0.1	71.7		28.1
111	moeses	13976	⬇ 2	⬇ 4		⬇ 1			99.3	0.7
112	Politeknik Banting, Selangor	13928	⬇ 29	⬇ 11	⬇ 2	⬇ 1	77.1		5.7	17.2
113	Hyperion	13389	⬇ 3	⬇ 3		⬆ 1			1.9	28.7
114	Granada	13238	⬇ 6	⬇ 6	⬇ 2	⬇ 1	34.2		5.8	59.4
115	MES22-Team	13207	⬇ 17	⬇ 3	⬇ 1		100.0
116	VIPR	13025	⬇ 1	⬆ 3	⬆ 1		6.8		66.3	26.9
117	SETI.Germany	12752	⬇ 6	⬇ 4	⬇ 2			7.4	24.8	67.7
118	youngfun429	12352	⬇ 14	⬇ 7	⬇ 2				62.7	37.2
119	Mensa	11614	⬇ 1	⬇ 2	⬇ 1				74.0	26.0
120	Abacus	11113	⬆ 7		⬆ 4				92.7	7.3
121	FREE ROBUX	10852	⬆ 118	⬆ 114	⬇ 1				100.0
122	Die Zeitfinder	10777	⬇ 10	⬇ 7	⬇ 1				100.0
123	Royal Military College of Canada	10691	⬆ 116	⬇ 5	⬇ 1		89.7		7.9	2.4
124	NUST	10104	⬆ 115	⬆ 30	⬆ 5	⬆ 1	11.4	84.3		4.2
125	nmbarek_team	9947	⬇ 5	⬇ 4		⬇ 1			99.8	0.2
126	FreeBSD	9848	⬇ 20	⬇ 10	⬇ 3		3.2		84.7	12.1
127	JiBoTeam	9707	⬆ 3	⬇ 1						100.0
128	Syntony	9321	⬇ 2	⬇ 5		⬆ 1				100.0
129	Shaffer's Studio	8945	⬇ 6	⬇ 4	⬇ 3	⬇ 1			86.4	13.5
130	Triangle	8816	⬇ 14	⬇ 3					96.2	3.8
131	TurkishMath	8560	⬇ 10	⬇ 9					91.1	8.9
132	Server66	8528	⬇ 8	⬇ 4			100.0
133	Furry Primes	8022	⬇ 2	⬇ 2			58.8		27.1	14.1
134	Aiblspitz	8002	⬆ 3	⬇ 2			2.1	60.0	19.7	16.1	2.1
135	Team Splunk	7605	⬇ 2	⬇ 2		⬆ 1		28.1	71.9
136	irowiki	7592	⬇ 8	⬇ 6		⬇ 1				100.0
137	Com Systems (RU)	7442	⬆ 40	⬆ 10	⬆ 1				62.7	37.3
138	Brasil	7171	⬇ 6	⬇ 4	⬇ 1				76.0	24.0
139	WSU Cougars	6864	⬇ 1	⬇ 3					56.6	43.3
140	Prime Rib	6855	⬇ 26						97.1	2.9
141	SU Prime Pirates	6437	⬆ 1	⬇ 4					61.5	38.5
142	University of Waterloo	6259	⬆ 3	⬇ 7					100.0
143	Team Christensen	6033	⬇ 3	⬇ 4	⬆ 1					100.0
144	Elisabeth-von-Thadden-Schule	6009	⬆ 4	⬇ 3	⬇ 1				38.6	61.4
145	GIMPS Romania	5527	⬆ 1	⬇ 1					100.0
146	Optimists Prime	5374	⬆ 1		⬆ 1			54.9	41.1	4.0
147	The_Dude_Abides	5120	⬇ 22	⬇ 4	⬆ 1		38.5			50.8
148	teamMALI	4900	⬆ 1	⬇ 6	⬆ 2				79.4	20.6
149	zeit	4837	⬇ 14	⬇ 1			3.2			96.8
150	Danpi for GIMPS	4710			⬆ 1		100.0
151	Hong Kong GIMP	4652	⬆ 8	⬆ 2	⬆ 2				67.0	33.0
152	International School of Beijing (ISB)	4623	⬇ 9	⬇ 14	⬇ 6				99.6	0.4
153	3DCenter.org	4537	⬇ 14	⬇ 4	⬇ 1						100.0
154	ANDY	4448	⬇ 1	⬇ 3					99.3	0.6
155	The East Coast	4426	⬇ 54	⬇ 3			99.3	0.7
156	Kabylie	4383	⬇ 1	⬇ 1			15.0	4.6	35.5	44.8	0.1
157	IOTA	4211	⬆ 82	⬆ 78	⬆ 78	⬆ 17	100.0
158	Olympic College	4166	⬇ 1	⬇ 2		⬇ 1				100.0
159	Phi Kappa Theta	3599	⬆ 7	⬆ 1	⬆ 1	⬇ 1			65.5	34.4
160	GIMPS.Hong Kong	3484	⬇ 8	⬇ 3	⬇ 3	⬇ 1	3.6		44.3	52.1
161	TunisianTeam	3415	⬇ 7	⬇ 3		⬇ 1			22.7	77.3
162	Zorin OS Crew	3194	⬇ 4	⬆ 1		⬇ 1			70.2	29.8
163	Team_Brazil	2999	⬆ 4	⬆ 2		⬇ 1	83.1	0.2		16.7
164	I Love Canadian Natural Resources	2921	⬆ 6	⬇ 5		⬇ 1				100.0
165	México mágico	2887	⬆ 47	⬆ 24		⬇ 1			82.0	18.0
166	FactorMania	2761	⬆ 67	⬆ 17		⬇ 1		66.5			33.5
167	Black Mesa	2730	⬇ 54	⬇ 22	⬇ 8	⬇ 1			84.5	15.5
168	Subprime Searches	2630	⬇ 4		⬇ 1	⬇ 1	90.3			9.7
169	EggCelentes	2574	⬆ 2	⬇ 2	⬇ 1	⬇ 1			42.1	57.9
170	Artists of Fine Art	2518	⬇ 36	⬇ 9	⬇ 1	⬇ 1			91.1	8.9
171	The Prime Pioneers	2425	⬆ 24	⬆ 20	⬆ 5	⬇ 1	7.5	77.0		10.5	4.9
172	Noam Karni Team	2364	⬆ 20	⬆ 16	⬇ 2	⬇ 1			66.9	33.1
173	VRS_SE	2359	⬆ 11	⬇ 4	⬇ 2	⬇ 1			66.8	33.2
174	Korea.Prime	2331	⬆ 19	⬇ 1	⬇ 2	⬇ 1			67.0	33.0
175	Saudi Primes	2268	⬇ 6	⬇ 9	⬇ 2					100.0
176	GIMPSMalaysia	2120	⬆ 41	⬆ 14	⬇ 1				75.4	24.5
177	GIMPS_KS	1908	⬆ 62	⬆ 29	⬆ 14	⬆ 1			42.1	56.3	1.6
178	alan145	1903	⬇ 18	⬇ 16	⬇ 4	⬇ 1	77.6	1.6		0.4	20.4
179	The Pensis	1869	⬇ 5	⬇ 5	⬇ 2					100.0
180	F=dp/dt	1845	⬇ 5	⬇ 5	⬇ 2				85.8	14.2
181	Obsidian	1821	⬇ 3	⬇ 1	⬇ 2					100.0
182	GIMPS_IOM	1712	⬇ 2	⬇ 6	⬇ 1		100.0
183	His Dark Materials	1699	⬇ 22	⬇ 12	⬇ 3	⬆ 1				50.8	49.1
184	Crunching@EVGA	1673	⬆ 55	⬇ 7	⬇ 1	⬆ 1			99.7	0.3
185	RobotechResearch	1594	⬆ 54	⬇ 7	⬇ 1	⬆ 1			100.0
186	San Francisco	1586	⬇ 3	⬇ 7	⬇ 1	⬆ 1			100.0
187	cr_colorado	1549	⬆ 3	⬆ 15	⬇ 1	⬆ 1				100.0
188	UCLA Linux Users Group	1536	⬇ 32	⬇ 18	⬇ 1	⬆ 1			100.0
189	TimE4This	1481	⬇ 10	⬇ 7	⬇ 1	⬆ 1				100.0
190	BrainStone	1451	⬇ 25	⬇ 18	⬇ 8	⬇ 7				100.0
191	CZAsTc	1447	⬆ 47	⬆ 43	⬆ 42				99.6	0.4
192	OcUK - Overclockers UK	1409	⬇ 5	⬇ 8	⬇ 3				100.0
193	math.auth.gr	1355	⬆ 15	⬆ 17	⬆ 13				61.7	38.3
194	Happy	1341	⬇ 6	⬇ 8	⬇ 4						99.9
195	Manri Costa Rica	981	⬇ 33	⬇ 3	⬇ 3				77.9	22.1
196	GIMPS Asturias	794		⬇ 2	⬇ 3				99.6	0.4
197	Weatopians	793		⬇ 2	⬇ 3				99.7	0.3
198	Math_Lovers	782	⬇ 9	⬇ 11	⬇ 2					100.0
199	Sæve Nordic Prime	781	⬇ 1	⬇ 3	⬇ 4				100.0
200	hreid	776	⬇ 14	⬇ 2	⬇ 3				100.0
201	crazyBerlin	774	⬇ 60	⬇ 4	⬇ 3				100.0
202	ISISS Valle Seriana	761	⬇ 3	⬇ 3	⬇ 3				99.6	0.4
203	Czech National Team	731	⬇ 52	⬇ 2	⬇ 2		5.1			90.9	2.4
204	Join Us 😈	708	⬆ 5	⬆ 7	⬆ 3		100.0
205	Team Bulgaria	588	⬇ 4	⬇ 1	⬇ 2					36.2	63.8
206	SGDynamo Dresden	581	⬇ 4	⬇ 3	⬇ 4		100.0
207	Pi Rho	544	⬆ 32	⬆ 28	⬆ 7					100.0
208	PrimeObsession	539	⬆ 31		⬇ 4					100.0
209	Morocco	531	⬆ 30	⬆ 26	⬇ 4					100.0
210	London Computation Club	478	⬆ 1	⬆ 4	⬇ 2					100.0
211	Team Dominik Radler	413	⬇ 5	⬇ 2	⬇ 2		100.0
212	/r/counting	337	⬆ 19	⬆ 14
213	KnightLight	315	⬆ 1	⬆ 3	⬇ 2					99.3
214	Unteranger Primelurche	269	⬇ 11	⬇ 9	⬇ 1					100.0
215	www.Adamek.biz	265	⬆ 3	⬆ 3						100.0
216	Therian Primes	262	⬆ 23	⬆ 19						100.0
217	Math Teachers of the World	259	⬆ 2	⬆ 2					100.0
218	GIMPS Hams	253	⬆ 2	⬆ 2				100.0
219	The Goodest Team	253	⬆ 2	⬆ 2						100.0
220	Lithuania LT	247	⬆ 2	⬆ 2						100.0
221	DividerHunt	221	⬆ 6	⬆ 4	⬆ 1		100.0
222	yfinder	208	⬆ 3	⬆ 1	⬆ 1					100.0
223	Name (t) = A x e^kt	207	⬇ 13	⬇ 10	⬆ 1					100.0
224	30thousandwon	193	⬇ 24		⬆ 1					100.0
225	GIMPS.Peace	122	⬆ 14	⬆ 4	⬆ 1		44.7	55.3
226	TeamUbuntu	121	⬆ 6	⬆ 2	⬆ 1					100.0
227	TeamEc	121	⬇ 23	⬇ 20	⬆ 1						100.0
228	FourthFloorFourEyes	46	⬇ 4	⬆ 2	⬆ 1		100.0
229	PROMYS	23	⬆ 5	⬆ 2	⬆ 1						100.0
230	sannerud.com	10	⬆ 5	⬆ 2	⬆ 2						100.0