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 2026-03-03 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	946308776					0.3		0.1		99.6
2	Slovakia	766132230	⬆ 1				0.1	97.8	0.1		2.0
3	POLAND	435346086	⬆ 1				0.2	99.0	0.1		0.6
4	PrimeNet	337603571	⬇ 2					97.4	0.3	0.4	1.9
5	-Too many Ones-	189733425					0.2	92.2			7.6
6	Ars Technica Team Prime Rib	61058275		⬆ 3				98.3	0.1	1.5	0.1
7	unRAID	33458614		⬇ 1				99.6	0.4
8	GIMPSChina	22536234		⬇ 1			75.0	17.4	3.9	0.7	2.9
9	More Power!!!	14639278	⬆ 1	⬆ 1	⬆ 1		13.7	56.5	1.8	0.8	27.2
10	One Man Team	13949032	⬇ 1	⬇ 2	⬇ 1			99.4	0.6
11	GW's legions	12745034	⬆ 1				0.1	0.9	30.5	0.9	67.7
12	UCM-curtisc	11854368	⬆ 1						99.3	0.7
13	Team-Deutschland	11068873	⬇ 2				3.9	8.1	0.4	0.1	87.3
14	TeamUK	7473585					40.7	5.2	18.4	1.3	34.3	0.1
15	szerverem.hu	7293573	⬆ 222				5.8	36.9	45.9	5.1	6.2
16	Porta Kruse	6431340	⬆ 19				2.0	0.2		0.1	91.5	6.1
17	GPU to 72	4601984	⬇ 2				56.6	25.0	0.5	4.0	13.8
18	SpongeBob SquarePants	3311470	⬇ 2					30.9	59.4	9.3	0.4
19	Numberphile	2925147	⬇ 1				29.2	41.2	21.8	6.7	0.9
20	tsc	2235987	⬇ 1	⬆ 1			89.9	5.9	1.6	0.2	2.3
21	UKRAINE	2074290	⬇ 1	⬆ 1			31.8	13.2	40.3	14.6
22	Wikipedia	1972956	⬆ 1	⬆ 1	⬆ 1	⬆ 1	58.9	33.8	4.0	2.3	0.8
23	Dutch Power Cows	1970521	⬇ 6	⬇ 3	⬇ 1	⬇ 1	32.9	28.2	1.3	1.3	36.3
24	Swedes Of Primes	1469646	⬇ 2				0.4	83.0	14.1	2.5
25	GIMPS.USA	1391117	⬇ 1				4.5	0.2	3.9	1.5	89.8
26	GIMPS.Occitania	1357493	⬇ 1	⬆ 1	⬆ 1			3.7				96.3
27	GIMPS.Japan	1354202	⬇ 6	⬇ 1	⬇ 1		4.2	0.1	8.7	2.1	84.9
28	UW Eau Claire	1180166	⬆ 70	⬆ 20			83.6		12.1	4.3
29	MBAi.Cloud	698182		⬆ 1	⬆ 1				100.0
30	MOXA	669548	⬇ 3	⬇ 2	⬇ 1		99.0		0.7	0.4
31	MATHSareREAL	651669	⬇ 5	⬇ 2			95.3		3.5	1.2
32	GIMPS.Korea	646522	⬆ 15				88.5	4.6	6.1	0.7	0.1
33	Rechenkraft.net	469617	⬇ 5	⬇ 2			4.6	58.7	2.9	5.8	27.4	0.6
34	Terry Kim Team	459352	⬇ 3	⬇ 1			98.0		1.0	0.6
35	citizenscience.ru	438178	⬇ 5	⬇ 1			84.0	6.4	4.4	0.9	3.7	0.6
36	Buhr	435426	⬇ 3	⬇ 1			60.7	3.1	19.9	6.0	10.3
37	S485122	310268	⬇ 3	⬇ 1				95.0		5.0
38	Smoke-it	276077	⬇ 6	⬇ 1			90.8	6.9	1.7
39	YahsTeam	217139	⬆ 1	⬇ 1			88.6		9.5	1.9
40	nranks	211645	⬆ 4	⬆ 6			33.3	0.6	3.3	0.4	62.4
41	randomteam	208173	⬆ 1		⬆ 3						100.0
42	NerdyGirls	207840	⬆ 3	⬇ 3			1.5	41.3	7.4	49.9
43	GIMPS Team Philippines	205929		⬇ 1	⬇ 2		76.6		2.9	1.6	17.5
44	Canada	205048	⬇ 6	⬇ 4	⬇ 1			3.0	66.7	29.3
45	404 - "Primes not Found"	194675	⬆ 27	⬆ 4	⬆ 1		76.3		23.7
46	Team Tartan	190432	⬇ 7	⬇ 3	⬇ 1				76.6	23.4
47	Colorado School of Mines	166041	⬆ 67	⬆ 11	⬆ 1	⬆ 1	89.0		8.5	2.5
48	GIMPS China	164779	⬇ 12	⬇ 4	⬇ 1	⬇ 1	94.0		2.5	0.4	2.9
49	OverclockerAustralia	147192	⬇ 1	⬇ 2	⬆ 1		59.7		21.2	15.6
50	BitMEX Research	146721	⬇ 9	⬇ 5	⬇ 1				95.4	4.6
51	Team China	123687	⬆ 3	⬇ 1					99.7	0.3
52	GIMPS.NZ	121354	⬇ 1	⬇ 1			78.8		10.2	10.9
53	Unicamp	115228	⬆ 7	⬆ 3	⬆ 1		72.2	0.3	22.6	4.9
54	SASAKI	114234	⬇ 1	⬇ 1	⬆ 1		100.0
55	EgyptianPolymaths	113413	⬆ 1		⬇ 2			37.1			58.0
56	Cap'n Entropy's Cavalcade of Wonderment	105745	⬇ 6	⬇ 4			76.3	5.2	16.1	2.4
57	Wisconsin	105274	⬇ 5	⬇ 3			51.1		25.9	23.0
58	GIMPS.France	95712	⬆ 11	⬆ 2			11.7	52.6	4.9	16.1	14.5
59	Hungary	89008	⬇ 2				0.5		2.1	2.5	94.6
60	SHADO	85033	⬇ 1	⬆ 1					64.2	17.1	10.9	2.2
61	UIUC	77837	⬆ 6	⬆ 2	⬆ 1				71.0	29.0
62	Net-Work	77074			⬇ 1		2.6	2.1			86.7
63	Eratosthenes Sieve	72876	⬆ 2	⬆ 4			0.8		97.8	1.4
64	Esperanto	70275	⬇ 1	⬆ 1	⬆ 1			24.9	12.3	62.7	0.2
65	AMD Users	68960	⬆ 6	⬆ 6	⬆ 1		67.6	0.3	13.8	17.7	0.6
66	Team Israel	60757		⬆ 4	⬆ 1	⬆ 2	97.4		1.3	1.3
67	Georgia Tech	60553	⬇ 30	⬇ 10	⬇ 3	⬇ 1	86.4		13.6
68	GIMPS.NEO	60527				⬇ 1			75.6	24.4
69	AJ	60487	⬆ 9	⬆ 5					76.4	23.6
70	ParadoxZ Commando	58528	⬆ 3	⬆ 3					71.8	28.2
71	Team_Italia	57485	⬆ 3	⬆ 1			2.6		68.0	22.5	2.2	3.9
72	Brno University of Technology	56950	⬇ 14	⬇ 3				22.0	61.9	16.1
73	Wile E. Coyote	54841	⬆ 7	⬆ 5	⬆ 3	⬆ 1			79.0	3.4	17.6
74	Team Belgium	54463	⬇ 4	⬆ 2	⬇ 1	⬇ 1	1.4	7.6	36.5	13.6	41.0
75	S147127	53482	⬆ 2				24.3		10.8	64.8
76	LTT fans	51823	⬇ 15	⬇ 10	⬇ 2		38.2		8.9	1.2	51.7
77	ComputerraRU	50147	⬇ 13				15.7		74.9	9.4
78	Team Viet Nam	44241	⬇ 23	⬆ 1	⬆ 1		27.6		30.1	31.8	10.5
79	Team Austria	40781	⬇ 3	⬆ 1	⬆ 1		98.2	0.5		1.2
80	Team Finland	38138	⬇ 34	⬇ 16	⬇ 2		64.5		34.8		0.7
81	IOTA	35518	⬆ 156	⬆ 48	⬆ 9	⬆ 1	96.1		2.4	1.5
82	Team H	35458		⬆ 1	⬇ 1	⬇ 1	10.9	0.9	87.7	0.5
83	HardOCP	34672	⬆ 3	⬆ 3	⬆ 3				77.9	22.1
84	Debian	34024	⬆ 5	⬆ 4	⬆ 3	⬆ 1			98.3	1.6
85	MES-Team	33982	⬇ 10	⬇ 3	⬇ 2	⬇ 1	72.2	7.7		20.1
86	huskers-gimps	33684	⬆ 5	⬆ 1	⬇ 1				73.8	26.2
87	Hermessz	33616	⬇ 4	⬇ 2	⬇ 5		65.3		34.7
88	socal_prime	32783	⬇ 7	⬇ 4				0.9	66.4	32.5	0.1
89	LimePrime	31193	⬇ 10	⬇ 8	⬇ 5			4.5	89.6	5.9
90	Small-Team-2000	29541	⬇ 5	⬇ 1	⬇ 1				10.6	89.4
91	Turku	29421	⬆ 24	⬆ 14					100.0
92	Costa Rica	25467	⬇ 2	⬇ 2					76.4	23.3
93	á•™(⇀‸↼‶)á•—	24844	⬆ 31	⬇ 2			0.9		98.7	0.4
94	NanJing Tech	24179	⬆ 143	⬆ 4	⬆ 4				83.8	16.2
95	Channel 4	22442	⬆ 11	⬇ 2	⬇ 1				81.1	18.9
96	The Fellowship of Infinity	21050	⬆ 17		⬇ 1				99.5	0.5
97	Team Retired	20214	⬇ 2	⬇ 5	⬇ 1				27.1	10.5
98	VIPR	19815	⬆ 18	⬆ 15	⬆ 2		46.7		35.8	17.5
99	PrimitiveRootsCircle	19411	⬆ 2	⬇ 4	⬇ 2		29.3		44.5	23.7	2.5
100	Portland State University	18325	⬇ 8	⬆ 3	⬆ 3		22.2	25.4	39.3	13.2
101	MurrayInfoSys	18240	⬆ 16	⬆ 7					64.6	35.4
102	A Single Engineer	18226	⬇ 3	⬇ 5	⬇ 3				72.0	28.0
103	SpartaAlumni	17586	⬇ 7	⬇ 3	⬇ 1				70.6	29.3
104	MadPoo	17270	⬇ 55	⬇ 5				27.2		72.8
105	Ozzie Prime	16665	⬇ 11	⬇ 3	⬆ 1			5.1	60.1	14.7		20.1
106	Quantus	16634	⬇ 19	⬇ 5	⬆ 1		7.3		27.9	26.8		38.0
107	Team Norway	16249	⬇ 10	⬇ 13	⬇ 2		80.3			4.7	14.9
108	Nerdfighters for Mersenne Primes	16120	⬇ 4	⬇ 1			2.9		82.0	15.1
109	Spain	14667	⬇ 25	⬆ 1	⬆ 2				63.9	36.1
110	GIMPS.Portugal	14450	⬇ 3	⬇ 1	⬇ 1		0.1	72.4		27.5
111	SETI.Germany	14419	⬆ 1	⬆ 4	⬇ 1			6.6	22.0	71.4
112	Team Slovenia	13710	⬇ 24	⬇ 8					73.5	26.5
113	GIMPS.Taiwan	12906	⬇ 13	⬇ 7	⬆ 1	⬆ 1			85.8	13.7	0.1
114	moeses	12569	⬇ 5	⬆ 3	⬇ 1	⬇ 1			99.1	0.9
115	Politeknik Banting, Selangor	12347	⬇ 22	⬇ 4			82.7		6.4	10.9
116	NUST	12236	⬆ 87	⬆ 5			9.8	86.7		3.5
117	Mensa	11954	⬆ 1	⬆ 1	⬆ 1				78.9	21.1
118	Granada	11852	⬇ 13	⬇ 2	⬆ 1		33.5		6.5	59.3
119	Hyperion	11376	⬇ 9	⬇ 7	⬇ 2				2.3	28.7
120	Abacus	11121	⬆ 3						92.6	7.4
121	FREE ROBUX	10852	⬆ 116	⬆ 1					100.0
122	Royal Military College of Canada	10691		⬆ 1			89.7		7.9	2.4
123	FreeBSD	10084	⬇ 15	⬆ 4	⬆ 1		0.5		82.7	16.8
124	Server66	9876	⬆ 5	⬆ 9	⬆ 7		100.0
125	Shaffer's Studio	9698	⬆ 1	⬆ 5					87.8	12.1
126	MES22-Team	9680	⬇ 24	⬇ 12	⬇ 3		100.0
127	Com Systems (RU)	9517	⬆ 29	⬆ 10	⬆ 6				65.4	34.6
128	Syntony	9490	⬇ 3		⬇ 2					100.0
129	youngfun429	9448	⬇ 26	⬇ 10	⬇ 2				65.6	34.4
130	Die Zeitfinder	9240	⬇ 19	⬇ 6	⬇ 2				100.0
131	Triangle	8838	⬇ 12		⬇ 1				96.2	3.8
132	JiBoTeam	8793	⬇ 2	⬇ 6	⬇ 3					100.0
133	Aiblspitz	8746	⬆ 1	⬆ 1	⬇ 1		1.9	63.4	18.1	14.7	1.9
134	Furry Primes	8022	⬇ 3	⬆ 1			58.8		27.1	14.1
135	RobotechResearch	7837	⬆ 43	⬆ 27	⬆ 3				40.7	59.3
136	irowiki	7786	⬇ 8			⬆ 1				100.0
137	Team Splunk	7605	⬇ 4	⬆ 1		⬆ 1		28.1	71.9
138	University of Waterloo	7044	⬇ 3	⬆ 5	⬆ 1	⬆ 1			100.0
139	TurkishMath	7023	⬇ 19	⬇ 7	⬇ 4	⬇ 3			89.1	10.9
140	Brasil	6837	⬇ 8	⬇ 1					79.9	20.0
141	Prime Rib	6523	⬇ 4						96.8	3.2
142	SU Prime Pirates	6437	⬇ 4						61.5	38.5
143	Elisabeth-von-Thadden-Schule	6009	⬆ 5	⬆ 2	⬆ 1				38.6	61.4
144	Team Christensen	5900	⬇ 3		⬆ 1					100.0
145	GIMPS Romania	5555	⬆ 1	⬆ 1	⬆ 1				100.0
146	WSU Cougars	5397	⬇ 10	⬇ 6	⬇ 3				57.5	42.4
147	The_Dude_Abides	5183	⬇ 7	⬆ 1			36.5			51.3
148	nmbarek_team	4957	⬇ 27	⬇ 23					99.7	0.3
149	teamMALI	4901			⬆ 1				79.3	20.6
150	Hong Kong GIMP	4898	⬆ 3	⬆ 2	⬇ 1				63.7	36.3
151	zeit	4731	⬇ 8	⬇ 1			2.3			97.7
152	Danpi for GIMPS	4710	⬇ 2	⬇ 1			100.0
153	Olympic College	4082	⬆ 4	⬆ 4	⬆ 1					100.0
154	Kabylie	3832		⬆ 2	⬇ 1		15.9	4.2	40.6	39.2
155	3DCenter.org	3708	⬇ 10								100.0
156	Argentina	3414	⬆ 81	⬆ 75	⬆ 70	⬆ 24			100.0
157	FactorMania	3357	⬆ 70	⬆ 8	⬇ 1	⬇ 1		60.2			39.8
158	Crunching@EVGA	3311	⬆ 79	⬆ 25	⬇ 1	⬇ 1			99.6	0.4
159	Noam Karni Team	3156	⬆ 31	⬆ 11		⬇ 1			75.1	24.9
160	México mágico	3143	⬆ 23	⬆ 6		⬇ 1			75.4	24.6
161	Korea.Prime	3120	⬆ 30	⬆ 11		⬇ 1			75.3	24.7
162	International School of Beijing (ISB)	3082	⬇ 23	⬇ 9		⬇ 1			99.5	0.5
163	GIMPS.Hong Kong	3016	⬇ 3	⬇ 4	⬇ 5	⬇ 1	2.7		51.1	46.2
164	Team_Brazil	2999	⬆ 1		⬇ 1	⬇ 1	83.1	0.2		16.7
165	Phi Kappa Theta	2824	⬇ 2	⬇ 7	⬇ 1	⬇ 1			55.9	44.1
166	I Love Canadian Natural Resources	2507		⬆ 1		⬇ 1				100.0
167	Pi Rho	2499	⬆ 70	⬆ 24		⬇ 1			67.1	32.9
168	The Prime Pioneers	2424	⬆ 29	⬆ 1		⬇ 1	1.0	88.2		10.4	0.3
169	GIMPSMalaysia	2394	⬆ 24	⬆ 5		⬇ 1			66.8	33.2
170	VRS_SE	2359	⬆ 1	⬆ 1		⬇ 1			66.8	33.2
171	TunisianTeam	2303	⬇ 12	⬇ 11	⬇ 6	⬇ 1			33.6	66.4
172	Saudi Primes	2268	⬇ 5	⬆ 1	⬇ 1	⬇ 1				100.0
173	GIMPS_KS	2193	⬆ 59	⬆ 2	⬇ 1	⬇ 1			36.6	62.0	1.4
174	Subprime Searches	2002	⬇ 4	⬇ 6	⬇ 1	⬇ 1	87.2			12.8
175	The Pensis	1869	⬇ 1	⬆ 1		⬇ 1				100.0
176	F=dp/dt	1845	⬇ 1	⬆ 1		⬇ 1			85.8	14.2
177	Obsidian	1821	⬆ 3	⬆ 1		⬇ 1				100.0
178	Zorin OS Crew	1718	⬇ 17	⬇ 17					44.9	55.1
179	GIMPS_IOM	1712	⬇ 2	⬆ 2			100.0
180	Optimists Prime	1658	⬇ 33	⬇ 33	⬇ 6	⬇ 3		100.0
181	ANDY	1586	⬇ 30	⬇ 18					98.5	1.5
182	San Francisco	1586	⬇ 3	⬆ 2					100.0
183	cr_colorado	1549	⬆ 9	⬆ 2		⬆ 1				100.0
184	CZAsTc	1447	⬆ 52	⬆ 5	⬆ 1	⬆ 1			99.6	0.4
185	His Dark Materials	1364	⬇ 17	⬇ 3	⬇ 5	⬇ 2				47.8	52.2
186	math.auth.gr	1355	⬆ 23	⬆ 6					61.7	38.3
187	TimE4This	1266	⬇ 2		⬇ 3					100.0
188	alan145	1184	⬇ 30	⬇ 9			84.6	2.5		0.4	12.5
189	Czech National Team	1182	⬇ 37	⬆ 23	⬆ 16		3.2		70.1	24.2	1.5
190	Morocco	1062	⬆ 47	⬆ 17	⬇ 1					100.0
191	Happy	807	⬇ 3	⬆ 2	⬇ 4						100.0
192	AWC	801	⬆ 45	⬆ 4	⬇ 1				100.0
193	GIMPS Asturias	794	⬆ 5	⬆ 4	⬇ 1				99.6	0.4
194	Weatopians	793	⬆ 5	⬆ 4	⬇ 1				99.7	0.3
195	Sæve Nordic Prime	781	⬆ 5	⬆ 4	⬇ 1				100.0
196	hreid	776	⬇ 12	⬆ 4	⬇ 1				100.0
197	ISISS Valle Seriana	759	⬆ 4	⬆ 6	⬆ 1	⬆ 2			99.8	0.2
198	Therian Primes	758	⬆ 39	⬆ 19	⬆ 2	⬆ 2		19.4		69.6	11.0
199	BrainStone	708	⬇ 35	⬇ 11	⬇ 9	⬆ 2				100.0
200	Join Us 😈	708	⬆ 10	⬆ 4	⬇ 1	⬆ 2	100.0
201	SGDynamo Dresden	580	⬆ 5	⬆ 4		⬆ 2	100.0
202	PrimeObsession	539	⬆ 35	⬆ 4		⬆ 2				100.0
203	London Computation Club	478	⬆ 10	⬆ 6		⬆ 2				100.0
204	Team Dominik Radler	351	⬆ 4	⬆ 6	⬆ 2	⬆ 2	100.0
205	/r/counting	337	⬆ 21	⬆ 8	⬆ 2	⬆ 2
206	KnightLight	315	⬆ 9	⬆ 8	⬆ 2	⬆ 2				99.3
207	Yurunago	276	⬆ 30	⬆ 24	⬆ 2	⬆ 2				100.0
208	Arpan Sen Labs	269	⬆ 29	⬆ 23	⬆ 18	⬆ 2				100.0
209	www.Adamek.biz	265	⬆ 8	⬆ 7	⬆ 1	⬆ 2				100.0
210	Unteranger Primelurche	260	⬇ 5	⬆ 5	⬆ 1	⬆ 2				100.0
211	Math Teachers of the World	259	⬆ 7	⬆ 7	⬆ 1	⬆ 2			100.0
212	GIMPS Hams	253	⬆ 7	⬆ 7	⬆ 1	⬆ 2		100.0
213	DividerHunt	221	⬆ 11	⬆ 8	⬆ 2	⬆ 2	100.0
214	Manri Costa Rica	213	⬇ 38	⬇ 19	⬆ 2	⬆ 2				100.0
215	30thousandwon	193	⬆ 8	⬆ 9	⬆ 3	⬆ 2				100.0
216	Team Bulgaria	192	⬇ 12	⬇ 5	⬇ 2	⬆ 2					99.9
217	miiro	150	⬆ 20	⬆ 14	⬆ 2	⬆ 2	100.0
218	GIMPS.Peace	122	⬆ 12	⬆ 7	⬆ 2	⬆ 2	44.7	55.3
219	TeamUbuntu	121	⬆ 10	⬆ 7	⬆ 2	⬆ 2				100.0
220	sannerud.com	74	⬆ 14	⬆ 10	⬆ 5	⬆ 2	31.3				13.9	54.8
221	FourthFloorFourEyes	46	⬆ 10	⬆ 7	⬆ 2	⬆ 2	100.0
222	TeamEc	26	⬇ 15	⬆ 5		⬆ 2					100.0
223	PROMYS	23	⬆ 10	⬆ 6	⬆ 1	⬆ 2					100.0
224	PARG team	21	⬆ 13	⬆ 7	⬆ 2	⬆ 2					100.0
225	yfinder	1	⬇ 3	⬇ 3	⬇ 8	⬆ 2				100.0
226	crazyBerlin	0	⬇ 45	⬇ 25	⬇ 30	⬇ 29