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 2026-06-16 16:00 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	727439335	⬆ 1	⬆ 1			0.1	98.9	0.1		1.0
2	GIMPS.Russia	538839360	⬇ 1	⬇ 1			0.3		0.1		99.6
3	Ars Technica Team Prime Rib	133643416	⬆ 3	⬆ 1				99.2		0.8
4	PrimeNet	122295476	⬇ 1	⬆ 1			0.2	98.1	0.7	1.0	0.1
5	POLAND	111657701	⬇ 1	⬇ 2			0.9	95.6	0.5	0.1	2.9
6	-Too many Ones-	32184391	⬇ 1				0.1	52.8			47.0
7	GIMPSChina	21332753	⬆ 1				62.9	22.0	4.2	0.6	10.2
8	szerverem.hu	19415196	⬆ 7				2.2	19.3	52.3	23.9	2.3
9	GW's legions	13847967	⬆ 2	⬆ 1				0.8	37.3	1.6	60.2
10	UCM-curtisc	11770320	⬆ 2	⬆ 2					99.3	0.7
11	Team-Deutschland	11430378	⬆ 2				2.7	56.4	0.9	0.1	39.9
12	More Power!!!	10745997	⬇ 3	⬆ 1			17.1	70.1	2.7	2.2	8.0
13	One Man Team	8732502	⬇ 3	⬇ 4				99.3	0.7
14	TeamUK	7030326		⬆ 1			48.8	2.6	19.5	1.5	27.4	0.1
15	Porta Kruse	6380224	⬆ 1	⬆ 1			2.0	0.5			91.2	6.2
16	Numberphile	5097523	⬆ 3	⬆ 2			8.3	33.5	12.4	3.6	42.1
17	GPU to 72	4728195					52.2	27.6	0.5	3.9	15.6
18	UW Eau Claire	3234493	⬆ 6	⬆ 1			90.0		7.3	2.7
19	tsc	3048256	⬆ 1	⬆ 1			68.1	3.2	1.1	0.4	27.2
20	UKRAINE	2440674	⬆ 1	⬆ 2	⬆ 1		11.5	7.0	69.7	11.7
21	Argentina	2395831	⬆ 59		⬇ 1		91.5		8.5
22	Wikipedia	1928659		⬆ 2			57.7	34.5	4.7	2.1	0.8
23	SpongeBob SquarePants	1694638	⬇ 5					30.5	58.9	10.6
24	GIMPS.Korea	1267734	⬆ 5	⬆ 5			88.0	4.8	4.0	0.9	2.1
25	GIMPS.Occitania	1203606	⬆ 3	⬆ 3				4.4				95.6
26	Swedes Of Primes	1179921	⬇ 1	⬆ 1			0.6	79.2	17.2	3.0
27	Dutch Power Cows	1118636	⬇ 4	⬇ 1			43.1	11.2	1.9	2.3	41.4
28	MBAi.Cloud	838812	⬆ 2	⬆ 2					99.9	0.1
29	MATHSareREAL	578886	⬆ 2	⬆ 2			96.2		2.5	1.3
30	Buhr	498604	⬆ 5	⬆ 3	⬆ 1		53.7	4.6	16.6	5.3	19.8
31	unRAID	486414	⬇ 24	⬇ 17	⬇ 1			80.1	18.0	1.5	0.4
32	citizenscience.ru	474755	⬆ 1				87.9	2.8	4.8	0.9	3.2	0.3
33	GIMPS.Japan	401729	⬇ 6	⬇ 8			28.6		31.3	9.2	30.9
34	Rechenkraft.net	378908		⬆ 1			1.4	51.5	6.1	6.5	34.5
35	404 - "Primes not Found"	376545	⬆ 8	⬆ 5	⬆ 3	⬆ 2	83.0		16.8	0.1
36	Colorado School of Mines	373935	⬆ 8	⬆ 1		⬇ 1	92.9		5.8	1.3
37	Terry Kim Team	372240	⬇ 1	⬇ 1	⬇ 2	⬇ 1	95.7		3.3	0.7
38	MOXA	356253	⬇ 6	⬇ 4	⬇ 1		98.9		0.9	0.2
39	S485122	305173	⬇ 2	⬇ 1				95.1		4.9
40	Smoke-it	265024	⬇ 2	⬇ 1			90.5	7.1	1.8
41	YahsTeam	243825	⬇ 2	⬆ 1			88.0		9.7	2.3
42	GIMPS.USA	241319	⬇ 16	⬆ 1	⬆ 1		60.3	3.4	26.7	7.2	2.0
43	nranks	237386	⬆ 3	⬇ 2	⬇ 1		31.1	0.5	3.0	0.4	65.0
44	NerdyGirls	205930	⬇ 3	⬆ 1				41.2	7.1	51.7
45	NanJing Tech	204146	⬆ 33	⬆ 3			25.5		70.9	3.6
46	GIMPS Team Philippines	200329	⬇ 4	⬇ 2			53.0		9.5	1.6	31.9
47	Canada	188827	⬇ 2	⬇ 1			5.7	1.9	66.5	26.0
48	Team Tartan	177246	⬇ 1	⬇ 1					76.7	23.3
49	OverclockerAustralia	150375	⬇ 1	⬆ 1			58.4		17.6	20.4
50	GIMPS.NZ	133607	⬆ 2	⬆ 1			79.9		10.0	10.1
51	Team China	130256		⬆ 1					99.7	0.3
52	Unicamp	126518	⬆ 1	⬆ 1			68.5		27.5	4.0
53	GIMPS.France	118075	⬆ 5	⬆ 1			9.4	67.9	4.8	6.0	11.7
54	IOTA	107793	⬆ 21	⬆ 4			95.3		3.1	1.5
55	SASAKI	100697	⬇ 1			⬆ 1	100.0
56	GIMPS.Portugal	100067	⬆ 54	⬆ 3		⬇ 1	45.8	51.2		3.0
57	AMD Users	94144	⬆ 7	⬆ 4	⬆ 1		49.5	0.6	10.1	39.3	0.4
58	GIMPS China	92141	⬇ 9	⬇ 2	⬇ 1		87.9		6.7		5.1
59	UIUC	87464	⬆ 1	⬆ 3	⬆ 1				68.1	31.9
60	Wisconsin	87355	⬇ 4		⬇ 1		39.2		31.4	29.4
61	SHADO	79197	⬇ 2	⬆ 4	⬆ 2	⬆ 1			62.6	18.4	11.5	1.5
62	BitMEX Research	78944	⬇ 12	⬇ 5	⬇ 1	⬇ 1			96.0	4.0
63	Wile E. Coyote	76466	⬆ 4	⬆ 5	⬆ 2				75.5	0.4	24.0
64	Net-Work	75999	⬇ 2				5.3	2.0			85.3
65	Eratosthenes Sieve	73307	⬇ 2	⬆ 2	⬆ 2	⬆ 1	0.7		95.3	3.9
66	Cap'n Entropy's Cavalcade of Wonderment	73228	⬇ 9	⬇ 3		⬇ 1	71.7	7.2	18.2	2.9
67	randomteam	71704	⬇ 27	⬇ 18	⬇ 5						100.0
68	Esperanto	66903	⬇ 3	⬆ 1				26.0	4.8	69.0	0.2
69	Team Israel	65124	⬆ 2	⬆ 3	⬆ 2		97.2		2.4	0.4
70	S147127	64211	⬆ 2	⬆ 1			31.0		20.1	48.9
71	VIPR	63598	⬆ 23	⬆ 10	⬆ 3	⬆ 1	89.6		7.5	2.6
72	AJ	63338	⬇ 6	⬇ 2	⬇ 3	⬇ 1			75.2	24.8
73	ParadoxZ Commando	62656	⬇ 5		⬇ 1				73.1	26.9
74	EgyptianPolymaths	56565	⬇ 19	⬇ 8	⬇ 1			76.3			5.5
75	Team_Italia	54334	⬇ 6	⬇ 1			3.2	0.2	66.0	24.4	2.3	3.1
76	Hungary	53246	⬇ 15	⬇ 1					4.6	1.9	93.5
77	Brno University of Technology	48764	⬇ 4					9.2	72.6	18.2
78	ComputerraRU	47931	⬇ 2	⬇ 2			21.5		67.0	11.5
79	GIMPS.NEO	42337	⬇ 9	⬇ 1					77.3	22.7
80	Team Viet Nam	40643	⬇ 1				30.0		32.7	25.9	11.3
81	Team Belgium	38949	⬇ 7	⬇ 2			1.4	2.5	34.6	24.0	37.5
82	Turku	36285		⬆ 1					100.0
83	HardOCP	36117	⬆ 1	⬇ 1					71.4	28.6
84	huskers-gimps	35922	⬆ 2						74.5	25.5
85	Debian	33368		⬆ 1	⬆ 1	⬆ 1			98.2	1.8
86	ᕙ(⇀‸↼‶)ᕗ	33122	⬆ 7	⬆ 2	⬆ 1	⬆ 2	0.6		99.0	0.4
87	Team H	32888	⬇ 4	⬇ 2	⬇ 2	⬇ 2	13.2		86.2	0.6
88	Hermessz	31611	⬇ 1	⬇ 1		⬇ 1	65.2		34.8
89	baraCUDA	29906	⬆ 137	⬆ 2					100.0
90	Small-Team-2000	27829	⬆ 1	⬇ 1					5.7	94.3
91	Channel 4	27359	⬆ 4	⬆ 2					81.6	18.4
92	The Fellowship of Infinity	26560	⬆ 4	⬆ 2	⬆ 1				99.5	0.5
93	socal_prime	26514	⬇ 3	⬇ 1	⬇ 1				73.7	26.1	0.1
94	MurrayInfoSys	24644	⬆ 5	⬆ 3					66.4	33.6
95	Costa Rica	23966	⬆ 2	⬆ 1					75.3	24.3
96	Aiblspitz	21318	⬆ 27	⬆ 8			0.1	78.5	7.4	13.9
97	Georgia Tech	20319	⬇ 9	⬆ 1					100.0
98	A Single Engineer	18488	⬆ 2	⬆ 2	⬆ 1				75.8	24.2
99	Team Retired	18374	⬇ 1		⬇ 1				29.8	11.5
100	PrimitiveRootsCircle	17707	⬆ 1	⬆ 3	⬆ 3		15.9		53.7	27.7	2.7
101	SpartaAlumni	17504	⬆ 2		⬇ 1				71.6	28.4
102	GIMPS Romania	17357	⬆ 43		⬇ 1		74.1		22.9	3.0
103	MES-Team	16474	⬇ 14	⬇ 8	⬇ 1		70.2	7.3		22.6
104	LimePrime	15849	⬇ 12	⬆ 1	⬆ 1			8.9	79.5	11.6
105	Com Systems (RU)	15806	⬆ 17	⬆ 4	⬇ 1				69.2	30.8
106	Spain	14266	⬆ 3	⬆ 4					71.5	28.5
107	NUST	14223	⬆ 5				16.4	74.6	5.9	3.0
108	TurkishMath	13636	⬆ 28	⬆ 11					88.7	11.3
109	moeses	13364	⬆ 6	⬆ 3	⬆ 1				99.1	0.9
110	RobotechResearch	13122	⬆ 19	⬆ 7	⬆ 3				48.8	51.2
111	Ozzie Prime	12439	⬇ 7	⬇ 3	⬇ 2			1.4	38.1	15.1		45.4
112	Nerdfighters for Mersenne Primes	12207	⬇ 4	⬆ 2	⬇ 1				90.4	9.6
113	Quantus	12170	⬇ 7	⬆ 2	⬇ 1		10.0		13.0	25.1		51.9
114	Team Slovenia	11730		⬇ 1					66.5	33.5
115	Team Finland	11313	⬇ 2	⬆ 1			1.4		96.2		2.4
116	SETI.Germany	11194	⬇ 5	⬆ 2				8.5	14.2	77.4
117	FREE ROBUX	10852	⬆ 3	⬆ 3					100.0
118	Royal Military College of Canada	10691	⬆ 3	⬆ 3			89.7		7.9	2.4
119	Portland State University	10300	⬇ 17	⬇ 13				44.3	40.0	15.7
120	Granada	9739	⬇ 1	⬆ 2			25.2		24.3	49.8
121	Shaffer's Studio	9564	⬆ 9	⬆ 6	⬆ 6				89.6	10.3
122	Syntony	9466	⬆ 6	⬆ 2	⬇ 1					100.0
123	University of Waterloo	9422	⬆ 16	⬆ 6					97.1	2.9
124	GIMPS.Taiwan	9374	⬇ 7	⬇ 1	⬇ 2				85.8	13.6	0.1
125	JiBoTeam	9341	⬆ 7	⬆ 3						100.0
126	LTT fans	9056	⬇ 49	⬇ 36	⬇ 2		92.5				7.5
127	Mensa	8910	⬇ 11	⬇ 1	⬇ 1				88.2	11.8
128	Die Zeitfinder	8697	⬆ 6	⬆ 3	⬆ 1				91.1	8.9
129	math.auth.gr	8551	⬆ 55	⬆ 3	⬆ 1				100.0
130	Pavlicin	8407	⬆ 96	⬆ 24	⬆ 5		79.7	0.1	20.2
131	FreeBSD	7556	⬇ 7	⬆ 3					73.2	26.8
132	Prime Rib	7358	⬆ 10	⬆ 7					96.8	3.2
133	Team Norway	7274	⬇ 28	⬇ 8			75.5			7.0	17.2
134	Abacus	7133	⬆ 1	⬆ 1					98.9	1.1
135	Triangle	7103	⬇ 4	⬇ 5	⬇ 7				98.9	1.1
136	FactorMania	6572	⬆ 21	⬆ 7				56.9			43.1
137	irowiki	6327		⬆ 3						100.0
138	Brasil	6293	⬆ 3	⬇ 2	⬆ 1				74.8	25.1
139	Team Christensen	6193	⬆ 5	⬆ 3	⬆ 1					100.0
140	México mágico	5805	⬆ 14	⬆ 15	⬆ 1				81.9	18.1
141	Arpan Sen Labs	5618	⬆ 60	⬆ 11	⬆ 1				51.9	48.1
142	Elisabeth-von-Thadden-Schule	5505	⬆ 4	⬆ 2	⬆ 1				42.1	57.9
143	Hong Kong GIMP	5487	⬆ 8	⬆ 7	⬆ 1				71.5	28.5
144	KnightLight	5215	⬆ 62	⬆ 1	⬆ 3					100.0
145	Morocco	5152	⬆ 44	⬆ 24	⬆ 7	⬆ 1			63.5	36.5
146	Team Splunk	5045	⬇ 8	⬇ 13	⬇ 8	⬇ 1		22.8	77.2
147	Hyperion	4998	⬇ 21	⬇ 10	⬇ 2					11.4
148	nmbarek_team	4946	⬆ 1	⬇ 2					99.9	0.1
149	Crunching@EVGA	4888	⬆ 6	⬇ 1	⬆ 1				99.7	0.3
150	Server66	4873	⬇ 25	⬆ 9	⬆ 9	⬆ 3	100.0
151	Korea.Prime	4707	⬆ 8	⬆ 2		⬇ 1			66.8	33.2
152	YESHUA IS THE MESSIAH	4648	⬆ 74	⬆ 12	⬆ 6	⬇ 1			99.2	0.8
153	The_Dude_Abides	4394	⬇ 6	⬆ 3		⬇ 1	7.0			73.9
154	teamMALI	4158	⬇ 4	⬇ 7	⬇ 5				75.7	24.3
155	DePaul MAT 141	4145	⬆ 71	⬆ 23	⬇ 1				99.5	0.5
156	Noam Karni Team	3963	⬆ 5	⬆ 2	⬇ 1				79.7	20.3
157	Olympic College	3828	⬇ 1							100.0
158	MES22-Team	3277	⬇ 31	⬆ 7	⬆ 2		100.0
159	Phi Kappa Theta	3145	⬆ 4	⬆ 1	⬆ 2				51.9	48.0
160	Politeknik Banting, Selangor	3101	⬇ 42	⬇ 22	⬇ 14		65.4		25.5	9.1
161	Team_Brazil	2999	⬆ 1	⬆ 6	⬆ 4		83.1	0.2		16.7
162	zeit	2845	⬇ 9	⬆ 1		⬆ 2	8.6			91.4
163	Furry Primes	2806	⬇ 23	⬇ 1	⬆ 1		81.7			18.3
164	GIMPS.Hong Kong	2650		⬇ 3	⬆ 2	⬇ 2	2.9		60.9	36.2
165	Pi Rho	2499	⬆ 1	⬆ 3	⬆ 2				67.1	32.9
166	GIMPSMalaysia	2394	⬆ 1	⬆ 4	⬆ 2				66.8	33.2
167	VRS_SE	2364	⬆ 1	⬆ 5	⬆ 2				66.7	33.3
168	Kabylie	2240	⬇ 10	⬇ 2	⬇ 5		18.4	1.9	34.7	45.0
169	Team Austria	2199	⬇ 88	⬇ 58	⬇ 13		12.8	9.5	77.7
170	GIMPS_KS	2199	⬆ 2	⬆ 3					36.5	62.0	1.4
171	The Prime Pioneers	1919	⬆ 3	⬆ 5	⬆ 1			100.0
172	The Pensis	1869	⬆ 4	⬆ 5	⬆ 1					100.0
173	SU Prime Pirates	1588	⬇ 30	⬇ 22	⬇ 2				99.6	0.4
174	San Francisco	1586	⬆ 5	⬆ 6					100.0
175	hreid	1575	⬆ 22	⬆ 6					100.0
176	cr_colorado	1549	⬆ 5	⬆ 6						100.0
177	Obsidian	1542	⬇ 4	⬆ 6						100.0
178	I Love Canadian Natural Resources	1514	⬇ 13	⬇ 4						100.0
179	CZAsTc	1448	⬆ 4	⬆ 5					99.5	0.5
180	WSU Cougars	1331	⬇ 32	⬆ 5	⬆ 1				57.7	42.3
181	3DCenter.org	1247	⬇ 21	⬇ 6	⬇ 1						100.0
182	Join Us 😈	1060	⬆ 17	⬆ 6	⬆ 1		66.8			33.2
183	youngfun429	1037	⬇ 50	⬇ 12	⬇ 1				75.3	24.7
184	TunisianTeam	1031	⬇ 14	⬆ 5					75.0	25.0
185	Therian Primes	1007	⬆ 5	⬆ 5				14.6		52.4	33.0
186	Czech National Team	903	⬆ 2	⬆ 5			4.1		91.8	0.8	2.0
187	TimE4This	876	⬇ 1	⬆ 5						100.0
188	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 37					100.0
189	AWC	801	⬆ 4	⬆ 4					100.0
190	F=dp/dt	799	⬇ 13	⬇ 11					99.3	0.7
191	GIMPS Asturias	794	⬆ 3	⬆ 3					99.6	0.4
192	Weatopians	793	⬆ 3	⬆ 3					99.7	0.3
193	GIMPS_IOM	665	⬇ 15	⬇ 7			100.0
194	SGDynamo Dresden	565	⬆ 6	⬆ 4			100.0
195	PARG team	563	⬆ 27	⬆ 26	⬆ 5					96.2	3.8
196	PrimeObsession	539	⬆ 6	⬆ 3	⬇ 1					100.0
197	Zorin OS Crew	465	⬇ 15		⬇ 1					100.0
198	GIMPS.Romania	422	⬆ 28	⬆ 2	⬇ 1				100.0
199	His Dark Materials	390	⬇ 14	⬇ 3	⬇ 1						99.8
200	Yurunago	276	⬆ 7	⬆ 4	⬆ 1					100.0
201	Team Dominik Radler	275	⬆ 3	⬆ 2	⬆ 1		100.0
202	Vegan	275	⬆ 24	⬆ 3	⬆ 1					100.0
203	Byberg Nordic Prime	265	⬇ 7	⬆ 3	⬆ 1					100.0
204	FDY	265	⬆ 22	⬆ 3	⬆ 1					100.0
205	Subprime Searches	256	⬇ 30	⬇ 18	⬆ 1					100.0
206	GIMPS Hams	253	⬆ 4	⬆ 4	⬆ 1			100.0
207	Optimists Prime	243	⬇ 20	⬇ 6	⬇ 8			100.0
208	miiro	240	⬆ 8	⬆ 7			100.0
209	DividerHunt	221	⬆ 2	⬆ 2			100.0
210	alan145	220	⬇ 19	⬇ 8			100.0
211	Manri Costa Rica	213	⬆ 2	⬆ 1						100.0
212	/r/counting	184	⬇ 7	⬆ 2
213	GIMPS.Peace	122	⬆ 4	⬆ 3			44.7	55.3
214	TeamUbuntu	121	⬆ 4	⬆ 3						100.0
215	sannerud.com	108	⬆ 4	⬆ 4			43.1				19.4	37.5
216	Team Bulgaria	25	⬇ 1	⬆ 2							100.0
217	PROMYS	23	⬆ 4	⬆ 3							100.0
218	yfinder	1	⬆ 7	⬆ 6						100.0