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 2026-06-04 14:00 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	Slovakia	710999837	⬆ 1	⬆ 1			0.1	98.8	0.1		1.0
2	GIMPS.Russia	585657290	⬇ 1	⬇ 1			0.3		0.1		99.6
3	Ars Technica Team Prime Rib	130844248	⬆ 3	⬆ 1	⬆ 1			99.2		0.8
4	PrimeNet	122302700		⬆ 1	⬆ 1		0.2	98.1	0.7	1.0
5	POLAND	111670797	⬇ 2	⬇ 2	⬇ 2		0.9	95.6	0.5	0.1	2.9
6	-Too many Ones-	32403099	⬇ 1				0.2	53.2			46.5
7	GIMPSChina	21299305	⬆ 1	⬆ 1			64.0	21.7	4.2	0.6	9.5
8	szerverem.hu	19228854	⬆ 7	⬆ 4			2.2	19.0	52.8	23.6	2.4
9	GW's legions	13766998	⬆ 2	⬆ 1				0.8	36.9	1.6	60.6
10	UCM-curtisc	11750183	⬆ 2	⬆ 3					99.3	0.7
11	Team-Deutschland	11339124	⬆ 2				2.6	54.5	0.8	0.1	41.8
12	More Power!!!	10865781	⬇ 3	⬆ 2			17.0	70.4	2.6	2.1	7.9
13	One Man Team	8735587	⬇ 3	⬇ 4				99.3	0.7
14	TeamUK	7112537		⬆ 1			49.1	2.8	19.1	1.5	27.4	0.1
15	Porta Kruse	6388622	⬆ 1	⬆ 1			2.0	0.5			91.2	6.1
16	Numberphile	4952765	⬆ 3	⬆ 2	⬆ 1	⬆ 1	10.6	29.5	12.8	3.7	43.3
17	GPU to 72	4703589			⬇ 1	⬇ 1	51.5	27.7	0.4	4.0	16.1
18	UW Eau Claire	3231080	⬆ 10	⬆ 1			90.0		7.3	2.7
19	tsc	2844965	⬆ 1	⬆ 1			68.8	3.5	1.1	0.4	26.2
20	Argentina	2382712	⬆ 128	⬆ 1			92.0		8.0
21	UKRAINE	2380943		⬆ 2			13.8	7.9	65.8	12.4
22	Wikipedia	1933574		⬆ 2	⬆ 1		57.8	34.5	4.6	2.1	0.8
23	SpongeBob SquarePants	1897311	⬇ 5	⬇ 1	⬇ 1			30.3	58.7	11.0
24	GIMPS.Occitania	1203606	⬆ 3	⬆ 5	⬆ 1	⬆ 1		4.4				95.6
25	Swedes Of Primes	1203185	⬇ 1	⬆ 3	⬇ 1	⬇ 1	0.6	80.0	16.5	3.0
26	GIMPS.Korea	1187302	⬆ 4	⬆ 4			88.3	4.8	4.2	0.9	1.6
27	Dutch Power Cows	1148236	⬇ 4	⬇ 2			43.3	11.6	1.9	2.2	40.9
28	MBAi.Cloud	844779	⬆ 1	⬆ 3					99.9	0.1
29	MATHSareREAL	578886	⬆ 3	⬆ 3	⬆ 1		96.2		2.5	1.3
30	unRAID	563181	⬇ 23	⬇ 23	⬇ 1			82.4	16.0	1.3	0.4
31	citizenscience.ru	491349	⬆ 4	⬆ 2			87.9	3.0	4.8	0.8	3.1	0.3
32	Buhr	482694	⬆ 4	⬆ 2			54.0	4.5	17.3	5.4	18.7
33	GIMPS.Japan	404759	⬇ 7	⬇ 6			23.9		30.4	8.9	36.6
34	Rechenkraft.net	391360	⬇ 1	⬆ 3			1.4	52.9	6.3	6.1	33.2
35	Terry Kim Team	377824	⬇ 1	⬆ 1			95.9		3.0	0.7
36	MOXA	355667	⬇ 5	⬇ 1			98.9		0.9	0.2
37	Colorado School of Mines	354478	⬆ 10	⬆ 2			92.8		5.9	1.3
38	S485122	305211	⬇ 1					95.0		5.0
39	404 - "Primes not Found"	286387	⬆ 5	⬆ 2			80.7		19.1	0.2
40	Smoke-it	265516	⬇ 2				90.5	7.1	1.8
41	nranks	237273	⬇ 1	⬆ 2		⬆ 1	31.1	0.5	3.0	0.4	65.1
42	YahsTeam	236695	⬇ 3		⬆ 1	⬆ 1	88.0		9.6	2.4
43	GIMPS.USA	236504	⬇ 18	⬇ 17	⬇ 1	⬇ 2	61.5	3.5	25.1	7.4	2.0
44	NerdyGirls	200162	⬇ 3	⬆ 2				42.4	6.9	50.7
45	GIMPS Team Philippines	196733	⬇ 2				55.4		8.4	1.6	30.8
46	NanJing Tech	193223	⬆ 46	⬆ 4			26.8		69.3	3.8
47	Canada	185765	⬇ 2		⬆ 1		2.9	2.0	68.8	26.2
48	Team Tartan	181817	⬇ 2		⬇ 1				76.8	23.2
49	OverclockerAustralia	150042					58.5		18.2	19.8
50	GIMPS.NZ	133358	⬆ 2	⬆ 1			79.2		10.6	10.2
51	Team China	127780		⬆ 1					99.7	0.3
52	Unicamp	125514	⬆ 1	⬆ 1			69.0		26.4	4.6
53	GIMPS.France	119011	⬆ 5	⬆ 1			9.4	67.4	4.7	6.7	11.6
54	SASAKI	103771		⬆ 2	⬆ 1		100.0
55	IOTA	103606	⬆ 25	⬆ 6	⬆ 1		95.2		3.2	1.6
56	GIMPS.Portugal	99724	⬆ 54	⬆ 14	⬆ 2	⬆ 1	43.2	52.1		4.7
57	GIMPS China	99003	⬇ 9	⬇ 2		⬆ 1	88.7		6.2		4.8
58	randomteam	95430	⬇ 16	⬇ 14	⬇ 4	⬇ 2					100.0
59	AMD Users	92088	⬆ 6				50.7	0.6	10.3	38.0	0.4
60	UIUC	88365	⬆ 1	⬆ 2	⬆ 2	⬆ 1			69.1	30.9
61	Wisconsin	88349	⬇ 4	⬇ 3		⬇ 1	40.5		31.1	28.4
62	BitMEX Research	86645	⬇ 12	⬇ 5	⬇ 2				96.3	3.7
63	SHADO	79227	⬇ 3	⬆ 2	⬆ 2				62.5	18.5	11.4	1.5
64	Net-Work	76759	⬇ 2				5.1	1.9			85.8
65	Cap'n Entropy's Cavalcade of Wonderment	76416	⬇ 9	⬇ 5	⬇ 2		73.2	6.9	17.4	2.4
66	Wile E. Coyote	75176	⬆ 6	⬆ 1	⬆ 1				76.1	0.4	23.4
67	Eratosthenes Sieve	73140	⬇ 4	⬇ 1	⬇ 1		0.8		95.3	3.9
68	Esperanto	67648	⬇ 4		⬆ 1			25.7	4.7	69.4	0.2
69	AJ	65915	⬇ 3		⬆ 1				75.8	24.2
70	ParadoxZ Commando	63340	⬇ 1	⬆ 1	⬆ 2				74.7	25.3
71	S147127	63293	⬆ 4	⬆ 1		⬆ 1	30.5		19.2	50.3
72	Team Israel	62885	⬇ 5	⬆ 1	⬆ 1	⬇ 1	97.1		2.5	0.4
73	EgyptianPolymaths	60828	⬇ 18	⬇ 10	⬇ 5			70.9			14.1
74	VIPR	54970	⬆ 22	⬆ 12	⬆ 2		87.1		8.6	4.0
75	Team_Italia	53723	⬇ 5	⬇ 1			3.2		65.2	25.2	2.3	3.4
76	Hungary	53339	⬇ 17	⬇ 1	⬇ 2				4.5	1.9	93.3
77	Brno University of Technology	47717	⬇ 6	⬆ 1		⬆ 1		9.4	72.5	18.1
78	ComputerraRU	47543	⬇ 1	⬇ 2		⬇ 1	21.7		66.7	11.6
79	GIMPS.NEO	45358	⬇ 11	⬇ 2					78.9	21.1
80	Team Belgium	41870	⬇ 7	⬇ 1			1.3	3.4	32.2	21.1	42.0
81	Team Viet Nam	41552	⬇ 3	⬇ 1			29.4		32.0	27.4	11.2
82	HardOCP	36900		⬇ 1	⬆ 1				72.0	28.0
83	Turku	36285	⬆ 6	⬇ 1	⬇ 1				100.0
84	huskers-gimps	35920		⬇ 1					74.5	25.5
85	Team H	33740	⬇ 4				13.3		86.2	0.6
86	Debian	33368		⬇ 2					98.2	1.8
87	Hermessz	32351	⬇ 4		⬆ 1		63.6		36.4
88	ᕙ(⇀‸↼‶)ᕗ	32338	⬆ 5	⬆ 1	⬇ 1		0.7		98.9	0.4
89	baraCUDA	29906	⬆ 137	⬆ 134					100.0
90	Small-Team-2000	28131							5.6	94.4
91	Channel 4	26556	⬆ 3	⬆ 1	⬆ 2	⬆ 1			81.1	18.9
92	socal_prime	26506	⬇ 5	⬇ 1	⬇ 1	⬇ 1			73.7	26.1	0.1
93	The Fellowship of Infinity	25774	⬆ 2	⬆ 1	⬇ 1				99.5	0.5
94	MurrayInfoSys	25156	⬆ 9	⬆ 2					68.1	31.9
95	Costa Rica	23902	⬆ 2						75.3	24.4
96	LTT fans	22365	⬇ 20	⬇ 8			37.5				62.5
97	Georgia Tech	20319	⬇ 23	⬆ 3					100.0
98	Aiblspitz	19524	⬆ 33	⬆ 7	⬆ 3		0.2	78.0	8.1	13.8
99	Team Retired	18771	⬇ 1						29.2	11.3
100	A Single Engineer	18488	⬆ 1	⬆ 1					75.8	24.2
101	PrimitiveRootsCircle	17635	⬇ 1	⬆ 1	⬆ 1		17.1		53.8	26.3	2.7
102	SpartaAlumni	17506	⬆ 2	⬇ 5	⬇ 4	⬆ 1			71.6	28.4
103	GIMPS Romania	17357	⬆ 42		⬆ 1	⬆ 1	74.1		22.9	3.0
104	MES-Team	17318	⬇ 19	⬇ 11	⬇ 1	⬇ 2	67.8	8.2		24.0
105	LimePrime	15012	⬇ 17	⬇ 1				9.4	78.4	12.2
106	Com Systems (RU)	15007	⬆ 21	⬆ 5	⬆ 2				67.6	32.3
107	Spain	14509	⬆ 2	⬆ 2	⬇ 1				70.3	29.7
108	NUST	14223	⬆ 5		⬇ 1		16.4	74.6	5.9	3.0
109	Ozzie Prime	13620	⬇ 10	⬇ 2				2.3	40.5	15.7		41.4
110	moeses	12581	⬆ 5	⬆ 3					99.0	1.0
111	Nerdfighters for Mersenne Primes	12206	⬇ 3	⬆ 3					90.4	9.6
112	Quantus	12170	⬇ 6	⬆ 3			10.0		13.0	25.1		51.9
113	RobotechResearch	12070	⬆ 21	⬆ 5	⬆ 1				46.5	53.5
114	TurkishMath	11994	⬆ 24	⬆ 8	⬇ 1				87.1	12.9
115	Team Slovenia	11687	⬇ 3	⬆ 1					66.7	33.3
116	Team Finland	11275	⬇ 25	⬇ 6	⬆ 1		1.1		96.5		2.4
117	SETI.Germany	11194	⬇ 6	⬇ 11	⬆ 1			8.5	14.2	77.4
118	FREE ROBUX	10852	⬆ 3	⬆ 1	⬆ 1				100.0
119	Royal Military College of Canada	10691	⬆ 3	⬆ 2	⬆ 1		89.7		7.9	2.4
120	Portland State University	10577	⬇ 18	⬇ 8	⬇ 4			43.4	38.9	17.7
121	Granada	10174	⬇ 5	⬇ 1			25.9		23.2	50.2
122	Syntony	9641	⬆ 3	⬆ 3						100.0
123	GIMPS.Taiwan	9377	⬇ 9						85.8	13.6	0.1
124	JiBoTeam	9242	⬆ 8	⬆ 3	⬆ 3					100.0
125	Mensa	8910	⬇ 7	⬇ 1					88.2	11.8
126	Shaffer's Studio	8812	⬆ 4	⬆ 2					88.3	11.5
127	University of Waterloo	8753	⬆ 10	⬆ 8	⬆ 2				100.0
128	Team Norway	8115	⬇ 21	⬇ 11	⬆ 2	⬆ 1	77.3			6.3	16.1
129	Triangle	7874	⬆ 4		⬆ 3	⬆ 1			98.9	1.1
130	Die Zeitfinder	7865	⬇ 1		⬇ 2	⬇ 2			90.1	9.9
131	math.auth.gr	7704	⬆ 54	⬆ 1	⬆ 2				100.0
132	Team Splunk	7605	⬆ 4	⬆ 1	⬆ 2			28.1	71.9
133	FreeBSD	7519	⬇ 10	⬆ 3	⬆ 2				73.6	26.4
134	Prime Rib	7362	⬆ 7	⬆ 6	⬆ 2				96.7	3.3
135	Abacus	7130	⬇ 16	⬇ 4	⬇ 4				98.9	1.0
136	Pavlicin	6707	⬆ 90	⬆ 87	⬆ 2	⬆ 1	99.9	0.1
137	FactorMania	6572	⬆ 20	⬆ 7	⬆ 4	⬆ 1		56.9			43.1
138	irowiki	6539	⬇ 3	⬆ 1	⬆ 2	⬆ 1				100.0
139	Team Austria	6523	⬇ 60	⬇ 41	⬇ 15	⬇ 3	70.6	3.2	26.2
140	Brasil	6268		⬇ 2	⬇ 3				75.1	24.8
141	Team Christensen	5920	⬆ 3	⬆ 2	⬆ 1					100.0
142	México mágico	5803	⬆ 16	⬆ 15	⬆ 1				81.9	18.1
143	Hyperion	5550	⬇ 23	⬇ 9	⬇ 4					10.3
144	Elisabeth-von-Thadden-Schule	5505	⬇ 1	⬆ 1					42.1	57.9
145	Hong Kong GIMP	5486	⬆ 6	⬆ 8					71.5	28.5
146	Arpan Sen Labs	5354	⬆ 55	⬆ 14	⬆ 2				54.4	45.6
147	Politeknik Banting, Selangor	5263	⬇ 30	⬇ 21	⬇ 1		79.6		15.0	5.4
148	KnightLight	5257	⬆ 59	⬇ 2	⬇ 1					100.0
149	nmbarek_team	4949							99.8	0.2
150	teamMALI	4927							79.5	20.5
151	Crunching@EVGA	4888	⬆ 8						99.7	0.3
152	Korea.Prime	4702	⬆ 9	⬆ 3					66.8	33.1
153	The_Dude_Abides	4099	⬇ 6	⬆ 3	⬆ 1		10.5			72.6
154	Morocco	4081	⬆ 36	⬆ 14	⬆ 9				60.6	39.4
155	Noam Karni Team	3962	⬆ 5	⬆ 4					79.7	20.3
156	Olympic College	3828	⬇ 2	⬆ 2	⬆ 1					100.0
157	YESHUA IS THE MESSIAH	3801	⬆ 69	⬆ 7	⬆ 2				99.1	0.9
158	Server66	3762	⬇ 34	⬇ 21			100.0
159	DePaul MAT 141	3352	⬆ 67	⬆ 64	⬆ 8				99.6	0.4
160	MES22-Team	3277	⬇ 34	⬇ 12	⬆ 2		100.0
161	Phi Kappa Theta	3139	⬆ 4		⬇ 5	⬆ 1			52.0	48.0
162	Furry Primes	3136	⬇ 23	⬇ 8	⬇ 1	⬇ 1	83.6			16.4
163	zeit	3091	⬇ 11		⬇ 3		7.9			92.1
164	Kabylie	3067	⬇ 9	⬆ 1			14.4	1.9	50.8	32.9
165	Team_Brazil	2999	⬇ 1	⬆ 1			83.1	0.2		16.7
166	GIMPS.Hong Kong	2871	⬇ 3	⬇ 4			2.7		56.2	41.1
167	SU Prime Pirates	2844	⬇ 25	⬇ 26	⬇ 14				83.5	16.5
168	Pi Rho	2499	⬇ 1	⬇ 1					67.1	32.9
169	GIMPSMalaysia	2394							66.8	33.2
170	VRS_SE	2364							66.7	33.3
171	GIMPS_KS	2199	⬆ 2	⬆ 1					36.5	62.0	1.4
172	The Prime Pioneers	1919	⬇ 4	⬆ 3				100.0
173	The Pensis	1869	⬆ 2	⬆ 3						100.0
174	San Francisco	1586	⬆ 7	⬆ 5	⬆ 1				100.0
175	hreid	1575	⬆ 22	⬆ 5	⬆ 1				100.0
176	cr_colorado	1549	⬆ 6	⬆ 5	⬆ 2					100.0
177	Obsidian	1542		⬇ 3	⬆ 2					100.0
178	I Love Canadian Natural Resources	1514	⬇ 12	⬇ 5	⬆ 2	⬆ 1				100.0
179	3DCenter.org	1510	⬇ 23	⬇ 8	⬇ 5	⬇ 1					100.0
180	CZAsTc	1448	⬆ 4	⬆ 4	⬆ 2				99.5	0.5
181	WSU Cougars	1390	⬇ 35	⬆ 4	⬆ 2				55.3	44.6
182	youngfun429	1281	⬇ 54	⬇ 35	⬇ 1				61.0	39.0
183	Join Us 😈	1060	⬆ 16	⬆ 12	⬆ 1		66.8			33.2
184	TunisianTeam	1031	⬇ 13	⬆ 2	⬆ 3				75.0	25.0
185	Therian Primes	1007	⬆ 6	⬆ 2	⬆ 3			14.6		52.4	33.0
186	Czech National Team	903	⬆ 3	⬆ 3	⬆ 3		4.1		91.8	0.8	2.0
187	TimE4This	876		⬆ 3	⬆ 3	⬆ 1				100.0
188	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 35	⬆ 3	⬆ 1			100.0
189	GIMPS_IOM	849	⬇ 10	⬇ 7	⬇ 4	⬇ 2	100.0
190	AWC	801	⬆ 3	⬆ 1	⬆ 2				100.0
191	F=dp/dt	799	⬇ 15	⬇ 13	⬆ 2				99.3	0.7
192	GIMPS Asturias	794	⬆ 2		⬆ 2				99.6	0.4
193	Weatopians	793	⬆ 2		⬆ 2				99.7	0.3
194	Subprime Searches	644	⬇ 20	⬇ 17	⬇ 8		60.3			39.7
195	SGDynamo Dresden	595	⬆ 5	⬆ 2	⬆ 3		100.0
196	PrimeObsession	539	⬆ 6	⬆ 2	⬆ 3					100.0
197	Zorin OS Crew	469	⬇ 19	⬇ 14	⬇ 1					100.0
198	His Dark Materials	424	⬇ 12	⬇ 10	⬇ 1						99.8
199	GIMPS.Romania	422	⬆ 27	⬆ 24	⬆ 1				100.0
200	alan145	390	⬇ 12	⬇ 1	⬆ 1		100.0
201	Optimists Prime	365	⬇ 18	⬇ 5	⬆ 1			100.0
202	PARG team	298	⬆ 21	⬆ 17	⬆ 1					92.8	7.2
203	Yurunago	276	⬆ 5	⬇ 1	⬆ 1					100.0
204	Team Dominik Radler	275	⬆ 1	⬇ 3	⬆ 1		100.0
205	Vegan	275	⬆ 21	⬇ 2	⬆ 1					100.0
206	Byberg Nordic Prime	265	⬇ 10	⬇ 2	⬆ 1					100.0
207	FDY	265	⬆ 19	⬇ 2	⬆ 1					100.0
208	www.Adamek.biz	265	⬆ 1	⬇ 2	⬆ 1					100.0
209	GIMPS Hams	253	⬆ 2	⬇ 1	⬆ 2			100.0
210	miiro	240	⬆ 6	⬆ 3	⬆ 5		100.0
211	DividerHunt	221	⬆ 1	⬇ 2	⬆ 1		100.0
212	Manri Costa Rica	213	⬆ 1	⬇ 2	⬆ 1					100.0
213	/r/counting	184	⬇ 7	⬇ 1	⬆ 1
214	GIMPS.Peace	122	⬆ 3	⬆ 1	⬆ 2		44.7	55.3
215	TeamUbuntu	121	⬆ 3	⬆ 1	⬆ 2					100.0
216	sannerud.com	108	⬆ 3	⬆ 1	⬆ 2		43.1				19.4	37.5
217	Team Bulgaria	74	⬇ 2	⬇ 3	⬆ 2						100.0
218	PROMYS	23	⬆ 4		⬆ 2						100.0
219	yfinder	1	⬆ 6	⬆ 3	⬆ 2					100.0