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 2026-07-06 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	595892931	⬆ 1				0.1	98.5	0.1		1.3
2	GIMPS.Russia	353335530	⬇ 1				0.4		0.1		99.5
3	PrimeNet	149923568		⬆ 1			0.2	80.0	0.6	0.8	18.4
4	Ars Technica Team Prime Rib	138486231	⬆ 2	⬇ 1				99.2		0.8
5	POLAND	112071401	⬇ 1				0.9	95.2	0.5	0.1	3.3
6	-Too many Ones-	23524083	⬇ 1				0.1	37.9	0.1		62.0
7	Team#1	20745932	⬆ 7	⬆ 1			2.1	18.4	48.9	28.4	2.2
8	GIMPSChina	20077725		⬇ 1			59.3	23.8	4.4	0.7	11.8
9	GW's legions	13934876	⬆ 1					0.8	37.7	1.7	59.7
10	UCM-curtisc	11900514	⬆ 2						99.3	0.7
11	Team-Deutschland	11612917					2.6	56.8	0.9	0.1	39.4
12	Numberphile	10551400	⬆ 6	⬆ 4	⬆ 1		3.7	19.4	6.0	1.8	69.0
13	More Power!!!	10279794		⬇ 1	⬇ 1		17.2	69.3	2.8	2.4	8.4
14	TeamUK	6877958	⬆ 1				47.8	2.6	20.2	1.6	27.7	0.1
15	Porta Kruse	6365872	⬆ 1				2.0	0.5			91.2	6.2
16	One Man Team	6201508	⬇ 7	⬇ 3				99.1	0.9
17	GPU to 72	5032282					50.7	28.9	0.7	3.7	15.8
18	tsc	3378916	⬆ 2	⬆ 1	⬆ 1		61.4	2.7	1.0	0.3	34.5
19	UW Eau Claire	3329607	⬆ 2	⬇ 1	⬇ 1		90.3		7.1	2.6
20	UKRAINE	2589519	⬆ 2	⬆ 1	⬆ 1		8.6	6.0	74.7	10.6
21	Argentina	2563445	⬆ 28	⬇ 1	⬇ 1		92.1		7.9
22	Wikipedia	1925695	⬆ 1				57.6	34.6	4.7	2.1	0.8
23	SpongeBob SquarePants	1398909	⬇ 4					30.2	61.7	8.1
24	GIMPS.Korea	1391045	⬆ 5	⬆ 1			88.0	4.7	3.9	0.9	2.4
25	GIMPS.Occitania	1201769	⬆ 3	⬇ 1				4.4				95.6
26	Swedes Of Primes	1108873	⬆ 1				1.2	78.3	17.4	3.1
27	Dutch Power Cows	1080970	⬇ 3				42.7	10.6	1.5	2.4	42.7
28	MBAi.Cloud	835093	⬆ 2						99.9	0.1
29	MATHSareREAL	578886	⬆ 2				96.2		2.5	1.3
30	404 - "Primes not Found"	564128	⬆ 17	⬆ 9	⬆ 1		88.7		11.2	0.1
31	Buhr	503064	⬆ 3		⬇ 1		51.8	4.9	16.7	5.2	21.5
32	GIMPS.USA	455094	⬇ 7	⬆ 10			31.9	47.0	14.8	3.8	2.1
33	citizenscience.ru	436746		⬇ 1			86.6	2.3	6.2	1.0	3.5	0.4
34	Colorado School of Mines	387107	⬆ 5	⬆ 2			89.8		8.9	1.4
35	GIMPS.Japan	376137	⬇ 9	⬇ 2			34.0		32.6	10.8	22.5
36	Rechenkraft.net	372669	⬇ 1	⬇ 2			0.5	51.4	6.0	6.8	35.3
37	Terry Kim Team	366936	⬇ 1	⬇ 2			95.6		3.3	0.7
38	MOXA	355977	⬇ 6	⬇ 1			99.2		0.7	0.1
39	S485122	304466	⬇ 2	⬇ 1	⬆ 1			95.0		5.0
40	unRAID	281116	⬇ 33	⬇ 10	⬇ 1			68.4	28.5	2.5	0.6
41	Smoke-it	257964	⬇ 3	⬇ 1			90.6	7.3	1.5
42	YahsTeam	247069	⬇ 1	⬇ 1			88.0		9.6	2.4
43	nranks	236653	⬆ 1				31.2	0.5	2.7	0.4	65.2
44	NanJing Tech	216326	⬆ 15	⬆ 2			24.2		72.4	3.4
45	GIMPS Team Philippines	202834	⬇ 3				51.7		9.8	1.7	32.6
46	NerdyGirls	197835	⬇ 3	⬇ 2				42.9	4.9	52.2
47	Canada	186303	⬇ 2				7.6	1.6	65.7	25.1
48	Team Tartan	173511	⬇ 2						77.1	22.9
49	OverclockerAustralia	146306	⬇ 1				60.0		14.9	20.7
50	GIMPS.NZ	134598	⬆ 1				79.5	0.2	11.1	9.1	0.1
51	Team China	128825	⬆ 3						99.7	0.3
52	Unicamp	127127	⬆ 1				68.2		28.0	3.8
53	GIMPS.France	116369	⬆ 3				9.6	68.9	4.2	5.3	11.9
54	IOTA	113103	⬆ 14				95.6		3.0	1.5
55	AMD Users	95692	⬆ 8	⬆ 3	⬆ 1		48.7	0.6	9.9	40.3	0.4
56	SASAKI	95069	⬇ 1	⬇ 1	⬇ 1		100.0
57	GIMPS.Portugal	89587	⬆ 48	⬇ 1		⬆ 1	51.1	46.4		2.5
58	UIUC	89374	⬆ 4	⬆ 3		⬇ 1			67.7	32.3
59	VIPR	83733	⬆ 31	⬆ 15	⬆ 4		92.4		5.7	1.7
60	Wisconsin	82264	⬇ 2				36.6		32.5	30.9
61	SHADO	80652		⬆ 2		⬆ 2			63.4	18.1	11.3	1.2
62	GIMPS China	80307	⬇ 12	⬇ 5	⬇ 3	⬇ 1	86.1		7.7		5.9
63	Wile E. Coyote	79893	⬆ 6	⬆ 3	⬇ 1	⬇ 1			75.1	0.4	24.5
64	Net-Work	74779					5.7	2.2			84.0
65	Eratosthenes Sieve	72746		⬆ 2			0.8		95.2	3.9
66	randomteam	71704	⬇ 26	⬇ 7							100.0
67	Cap'n Entropy's Cavalcade of Wonderment	67807	⬇ 7	⬇ 2	⬆ 1		69.4	7.8	19.6	3.1
68	BitMEX Research	66607	⬇ 16	⬇ 6	⬇ 1				95.2	4.8
69	Esperanto	66602	⬇ 3	⬇ 1		⬆ 1		25.9	4.8	69.1	0.2
70	S147127	66427	⬆ 4			⬇ 1	31.5		21.8	46.7
71	ParadoxZ Commando	62977		⬆ 1	⬆ 1	⬆ 1			72.7	27.3
72	Team Israel	62799	⬆ 1	⬇ 1	⬇ 1	⬇ 1	97.1		2.5	0.4
73	Team_Italia	56624	⬇ 1	⬆ 2	⬆ 1		3.3	0.6	63.3	25.8	3.2	2.7
74	AJ	56326	⬇ 4	⬇ 5	⬇ 1				74.7	25.3
75	EgyptianPolymaths	54418	⬇ 18	⬇ 2				79.3
76	Hungary	52997	⬇ 9						4.6	1.4	93.9
77	Brno University of Technology	46255	⬇ 2					4.7	75.0	20.3
78	ComputerraRU	43741	⬇ 1				24.4		71.8	3.8
79	Team Belgium	38959	⬇ 1	⬆ 2	⬆ 1	⬆ 1	1.4	2.5	32.6	26.1	37.5
80	GIMPS.NEO	38314	⬇ 4	⬇ 1	⬇ 1	⬇ 1			79.4	20.6
81	Turku	36285	⬆ 3	⬆ 1					100.0
82	Team Viet Nam	36031	⬇ 2	⬇ 2			33.9		36.9	29.2
83	huskers-gimps	35936	⬆ 2	⬆ 1					74.5	25.5
84	HardOCP	34564	⬇ 3	⬇ 1					70.1	29.9
85	Team H	33726	⬇ 3				13.0		86.4	0.5
86	Hermessz	33464	⬆ 1	⬆ 2			64.8		35.2
87	Debian	33368	⬇ 4	⬇ 1					98.2	1.8
88	ᕙ(⇀‸↼‶)ᕗ	33123	⬆ 3	⬇ 1			0.6		98.9	0.4
89	baraCUDA	29906	⬆ 134						100.0
90	Small-Team-2000	28309	⬇ 1						5.6	94.4
91	Channel 4	27356	⬆ 2						81.6	18.4
92	The Fellowship of Infinity	27352	⬆ 3	⬆ 1					99.5	0.5
93	MurrayInfoSys	26836	⬆ 4	⬆ 1					67.0	32.9
94	Costa Rica	25654	⬆ 2	⬆ 1					77.0	22.7
95	Aiblspitz	25481	⬆ 19	⬆ 2	⬆ 1		0.1	86.1	3.1	10.6
96	socal_prime	24212	⬇ 8	⬇ 4	⬇ 1				74.3	25.4	0.1
97	NUST	23263	⬆ 12	⬆ 10	⬆ 11		44.1	50.4	3.6	1.8
98	Georgia Tech	20319	⬆ 12	⬇ 2	⬇ 1				100.0
99	A Single Engineer	18488	⬆ 1		⬇ 1				75.8	24.2
100	LimePrime	18283	⬇ 6	⬆ 4				7.7	82.1	10.1
101	Team Retired	18033	⬇ 3	⬇ 3	⬇ 2				30.4	11.8
102	GIMPS Romania	17357	⬆ 38	⬇ 1	⬇ 1		74.1		22.9	3.0
103	Com Systems (RU)	16859	⬆ 14	⬆ 2	⬆ 1				69.6	30.4
104	PrimitiveRootsCircle	16790	⬇ 5	⬇ 1	⬇ 2		14.5		51.9	30.8	2.9
105	SpartaAlumni	16771	⬇ 4	⬇ 5	⬇ 2				74.8	25.2
106	MES-Team	14306	⬇ 14	⬇ 4	⬇ 1		71.0	6.4		22.5
107	TurkishMath	13669	⬆ 18	⬆ 6	⬇ 1				94.3	5.7
108	Spain	13473	⬇ 4	⬇ 2	⬇ 1				69.9	30.1
109	RobotechResearch	13385	⬆ 17	⬆ 3					47.8	52.2
110	moeses	12587	⬆ 3	⬇ 1					99.0	1.0
111	Quantus	12170	⬇ 5				10.0		13.0	25.1		51.9
112	Ozzie Prime	12080	⬇ 10	⬇ 4					39.2	15.5		45.2
113	Nerdfighters for Mersenne Primes	11224	⬇ 5	⬇ 3					91.4	8.6
114	Portland State University	11147	⬇ 3	⬆ 5	⬆ 5			41.1	44.4	14.5
115	FREE ROBUX	10852	⬆ 6	⬆ 2					100.0
116	Team Slovenia	10719		⬇ 2					65.4	34.6
117	Royal Military College of Canada	10691	⬆ 5	⬆ 1			89.7		7.9	2.4
118	Team Finland	10532	⬇ 6	⬇ 3			1.5		95.9		2.5
119	University of Waterloo	10222	⬆ 18	⬆ 5	⬆ 1				97.3	2.7
120	Syntony	9504	⬆ 7	⬆ 2	⬆ 1					100.0
121	SETI.Germany	9358	⬇ 14	⬇ 5	⬇ 7			10.1		89.9
122	LTT fans	9056	⬇ 43	⬇ 1			92.5				7.5
123	Shaffer's Studio	8795	⬆ 1	⬆ 4	⬆ 1				88.7	11.2
124	Granada	8684	⬇ 1	⬇ 4	⬇ 1		24.7		27.2	47.3
125	JiBoTeam	8639	⬆ 3		⬆ 1					100.0
126	math.auth.gr	8551	⬆ 12	⬆ 5	⬆ 1				100.0
127	Pavlicin	8407	⬆ 96	⬆ 9	⬆ 1		79.7	0.1	20.2
128	Mensa	8400	⬇ 13	⬇ 2	⬆ 1				84.3	15.7
129	FreeBSD	8386	⬆ 3	⬆ 4	⬆ 1				75.9	24.1
130	Die Zeitfinder	7926	⬆ 1		⬇ 5				90.2	9.8
131	Abacus	7926	⬆ 3	⬆ 4	⬆ 3				99.0	1.0
132	Triangle	7911	⬆ 3	⬇ 3	⬇ 1				98.8	1.2
133	Server66	7649	⬇ 4	⬆ 25	⬇ 1		100.0
134	GIMPS.Taiwan	7047	⬇ 14	⬇ 11	⬆ 1				81.2	18.1	0.1
135	Team Norway	6750	⬇ 32	⬇ 7	⬆ 1		75.5			7.6	16.6
136	Prime Rib	6582	⬆ 6	⬇ 2	⬇ 3				96.3	3.7
137	FactorMania	6572	⬆ 16					56.9			43.1
138	The_Dude_Abides	6536	⬆ 13	⬆ 15	⬆ 11	⬆ 3	4.7		25.5	54.2	0.8
139	Arpan Sen Labs	6421	⬆ 34	⬆ 7	⬆ 1	⬇ 1			57.7	42.3
140	irowiki	6158	⬇ 1	⬇ 2	⬇ 2	⬇ 1				100.0
141	Team Christensen	6029	⬆ 3	⬇ 1	⬇ 2	⬇ 1				100.0
142	México mágico	5564	⬆ 13	⬇ 1	⬇ 1				85.4	14.6
143	Elisabeth-von-Thadden-Schule	5505	⬆ 2		⬇ 1				42.1	57.9
144	Morocco	5425	⬆ 43	⬆ 10					60.3	39.7
145	Brasil	5300	⬇ 4	⬇ 6	⬇ 2				74.0	25.9
146	KnightLight	5091	⬆ 59	⬆ 2	⬇ 1					100.0
147	nmbarek_team	4946	⬆ 2	⬆ 2	⬇ 1				99.9	0.1
148	DePaul MAT 141	4934	⬆ 75	⬆ 11	⬇ 1				99.6	0.4
149	Crunching@EVGA	4888	⬆ 7	⬆ 2	⬇ 1				99.7	0.3
150	Korea.Prime	4709	⬆ 10	⬆ 2					66.8	33.2
151	Hong Kong GIMP	4708	⬇ 1	⬇ 7					66.8	33.2
152	YESHUA IS THE MESSIAH	4648	⬆ 27	⬆ 5					99.2	0.8
153	teamMALI	4158	⬇ 5	⬇ 3	⬆ 1				75.7	24.3
154	Hyperion	4076	⬇ 24	⬇ 9	⬇ 1					13.8
155	Noam Karni Team	3963	⬆ 3						79.7	20.3
156	Phi Kappa Theta	3757	⬆ 8	⬆ 5	⬆ 4				66.1	33.9
157	Politeknik Banting, Selangor	3101	⬇ 38	⬇ 10			65.4		25.5	9.1
158	Olympic College	3075	⬇ 1	⬇ 2						100.0
159	Team_Brazil	2999	⬆ 3	⬆ 6			83.1	0.2		16.7
160	GIMPS.Hong Kong	2627	⬇ 1	⬆ 6	⬆ 1		2.1		61.4	36.5
161	Pi Rho	2499	⬆ 6	⬆ 7	⬆ 3	⬆ 1			67.1	32.9
162	GIMPSMalaysia	2394	⬆ 6	⬆ 7	⬆ 3	⬆ 1			66.8	33.2
163	zeit	2352	⬇ 9	⬇ 1	⬇ 1	⬇ 2	10.4			89.6
164	Furry Primes	2317	⬇ 17	⬇ 1	⬇ 1		77.8			22.2
165	CZAsTc	2288	⬆ 21	⬆ 15	⬆ 1				99.5	0.4
166	Kabylie	2209	⬇ 5	⬇ 2	⬆ 1		17.3	1.9	35.1	45.6
167	Team Austria	2199	⬇ 81	⬇ 25	⬆ 1		12.8	9.5	77.7
168	GIMPS_KS	2199	⬆ 3	⬆ 3	⬆ 1				36.5	62.0	1.4
169	VRS_SE	2104		⬆ 1	⬆ 1				74.9	25.1
170	The Prime Pioneers	1919	⬆ 6	⬆ 2	⬆ 1			100.0
171	The Pensis	1869	⬆ 6	⬆ 2	⬆ 1					100.0
172	San Francisco	1586	⬆ 9	⬆ 2	⬆ 1				100.0
173	hreid	1575	⬆ 24	⬆ 2	⬆ 1				100.0
174	cr_colorado	1549	⬆ 9	⬆ 2	⬆ 1					100.0
175	Obsidian	1542	⬇ 3	⬆ 2	⬆ 2					100.0
176	I Love Canadian Natural Resources	1514	⬇ 10	⬆ 2	⬆ 2					100.0
177	3DCenter.org	1194	⬇ 14	⬆ 2	⬆ 2						100.0
178	Amserver	1066	⬆ 45	⬆ 42	⬆ 2		100.0
179	Join Us 😈	1060	⬆ 20	⬆ 4	⬆ 2		66.8			33.2
180	youngfun429	1037	⬇ 34	⬆ 2	⬆ 2				75.3	24.7
181	TunisianTeam	1031	⬇ 7	⬆ 3	⬆ 2				75.0	25.0
182	Therian Primes	1007	⬆ 9	⬆ 3	⬆ 2			14.6		52.4	33.0
183	Team Bulgaria	905	⬆ 31	⬆ 34	⬆ 32	⬆ 31			95.0		5.0
184	Czech National Team	903	⬆ 4	⬆ 2	⬆ 1	⬇ 1	4.1		91.8	0.8	2.0
185	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 3	⬆ 1	⬇ 1			100.0
186	AWC	801	⬆ 8	⬆ 4	⬆ 1	⬇ 1			100.0
187	GIMPS Asturias	794	⬆ 8	⬆ 5	⬆ 2	⬇ 1			99.6	0.4
188	F=dp/dt	794	⬇ 8	⬆ 3		⬇ 1			100.0
189	Weatopians	793	⬆ 7	⬆ 4	⬆ 1	⬇ 1			99.7	0.3
190	Team Splunk	771	⬇ 54	⬇ 58	⬇ 14	⬇ 1			100.0
191	TimE4This	626	⬆ 1	⬇ 4		⬇ 1				100.0
192	SGDynamo Dresden	564	⬆ 8	⬆ 3		⬇ 1	100.0
193	PARG team	563	⬆ 27	⬆ 9		⬇ 1				96.2	3.8
194	PrimeObsession	539	⬆ 7	⬆ 2		⬇ 1				100.0
195	GIMPS.Romania	422	⬆ 28	⬆ 3		⬇ 1			100.0
196	His Dark Materials	325	⬇ 6	⬆ 3	⬆ 1						99.8
197	GIMPS_IOM	320	⬇ 19	⬇ 8	⬇ 1	⬇ 2	100.0
198	Yurunago	276	⬆ 8	⬆ 5		⬇ 1				100.0
199	Vegan	275	⬆ 8	⬆ 6		⬇ 1				100.0
200	Byberg Nordic Prime	265	⬇ 11	⬆ 6		⬇ 1				100.0
201	FDY	265	⬆ 22	⬆ 6		⬇ 1				100.0
202	Subprime Searches	256	⬇ 27	⬇ 8		⬇ 1				100.0
203	GIMPS Hams	253	⬆ 7	⬆ 6		⬇ 1		100.0
204	WSU Cougars	247	⬇ 39	⬇ 23		⬇ 1				100.0
205	miiro	240	⬆ 10	⬆ 5	⬆ 1		100.0
206	Zorin OS Crew	237	⬇ 21	⬇ 9	⬆ 1					100.0
207	DividerHunt	221	⬆ 4	⬆ 4	⬆ 1		100.0
208	Team Dominik Radler	214	⬇ 5	⬇ 4	⬇ 3	⬇ 4	100.0
209	Manri Costa Rica	213	⬆ 3	⬆ 3		⬇ 1				100.0
210	/r/counting	184	⬇ 6	⬆ 3		⬇ 1
211	alan145	180	⬇ 13	⬇ 11		⬇ 1	100.0
212	GIMPS.Peace	122	⬆ 4	⬆ 2		⬇ 1	44.7	55.3
213	TeamUbuntu	121	⬆ 4	⬆ 2		⬇ 1				100.0
214	sannerud.com	108	⬆ 4	⬆ 2		⬇ 1	43.1				19.4	37.5
215	PROMYS	23	⬆ 4	⬆ 3	⬆ 1						100.0
216	yfinder	1	⬆ 6	⬆ 3	⬆ 2					100.0