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 2026-06-11 15:00 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	711042931	⬆ 1	⬆ 1			0.1	98.8	0.1		1.0
2	GIMPS.Russia	549481201	⬇ 1	⬇ 1			0.3		0.1		99.6
3	Ars Technica Team Prime Rib	132280638	⬆ 3	⬆ 1				99.2		0.8
4	PrimeNet	122303103		⬆ 1			0.2	98.1	0.7	1.0	0.1
5	POLAND	111654626	⬇ 2	⬇ 2			0.9	95.6	0.5	0.1	2.9
6	-Too many Ones-	32275643	⬇ 1				0.1	52.9			46.8
7	GIMPSChina	21442094	⬆ 1				63.7	21.7	4.1	0.6	9.9
8	szerverem.hu	19285224	⬆ 7	⬆ 1			2.2	19.3	52.6	23.5	2.4
9	GW's legions	13816106	⬆ 2	⬆ 2				0.8	37.1	1.6	60.4
10	UCM-curtisc	11796128	⬆ 2	⬆ 3					99.3	0.7
11	Team-Deutschland	11365112	⬆ 2	⬆ 1			2.6	55.6	0.8	0.1	40.6
12	More Power!!!	10843807	⬇ 3	⬆ 2			17.0	70.3	2.6	2.1	7.9
13	One Man Team	8734833	⬇ 3	⬇ 3				99.3	0.7
14	TeamUK	7059935		⬆ 1			49.0	2.6	19.4	1.5	27.4	0.1
15	Porta Kruse	6383599	⬆ 1	⬆ 1			2.0	0.5			91.2	6.2
16	Numberphile	5026546	⬆ 3	⬆ 2			9.0	31.9	12.6	3.6	42.7
17	GPU to 72	4717520					51.9	27.6	0.4	4.0	15.8
18	UW Eau Claire	3234493	⬆ 6	⬆ 1			90.0		7.3	2.7
19	tsc	2939704	⬆ 1	⬆ 1			69.7	3.3	1.1	0.4	25.4
20	UKRAINE	2423587	⬆ 1	⬆ 3	⬆ 1		12.4	7.3	68.3	11.9
21	Argentina	2395831	⬆ 71		⬇ 1		91.5		8.5
22	Wikipedia	1930970		⬆ 2			57.7	34.5	4.7	2.1	0.8
23	SpongeBob SquarePants	1792235	⬇ 5	⬇ 1				30.4	58.6	11.0
24	GIMPS.Korea	1231708	⬆ 6	⬆ 5	⬆ 2		88.3	4.8	4.2	0.9	1.7
25	GIMPS.Occitania	1203606	⬆ 3	⬆ 3	⬇ 1			4.4				95.6
26	Swedes Of Primes	1192060	⬇ 1	⬆ 1	⬇ 1		0.6	79.4	17.1	3.0
27	Dutch Power Cows	1137295	⬇ 4	⬇ 2			43.8	11.0	1.9	2.2	41.0
28	MBAi.Cloud	842773	⬆ 1	⬆ 2					99.9	0.1
29	MATHSareREAL	578886	⬆ 2	⬆ 2			96.2		2.5	1.3
30	unRAID	522702	⬇ 23	⬇ 22				81.0	17.2	1.4	0.4
31	Buhr	493499	⬆ 5	⬆ 2	⬆ 1		53.9	4.5	16.8	5.3	19.5
32	citizenscience.ru	475394	⬆ 1		⬇ 1		87.8	2.9	4.8	0.9	3.2	0.3
33	GIMPS.Japan	405718	⬇ 6	⬇ 7			27.5		30.6	8.9	32.9
34	Rechenkraft.net	383985		⬆ 1			1.5	52.0	6.2	6.4	34.0
35	Terry Kim Team	372821		⬆ 1			95.9		3.1	0.7
36	Colorado School of Mines	369728	⬆ 11	⬆ 2	⬆ 1		92.8		5.9	1.3
37	MOXA	356008	⬇ 5	⬇ 3	⬇ 1		98.9		0.9	0.2
38	404 - "Primes not Found"	351366	⬆ 5	⬆ 3	⬆ 1		81.8		18.0	0.2
39	S485122	305084	⬇ 2	⬇ 2	⬇ 1			95.0		5.0
40	Smoke-it	265151	⬇ 2	⬇ 1			90.5	7.1	1.8
41	YahsTeam	240066	⬇ 2	⬆ 1	⬆ 1		88.5		9.2	2.3
42	GIMPS.USA	238132	⬇ 16	⬆ 1	⬆ 1		61.1	3.5	25.6	7.4	2.0
43	nranks	237412	⬆ 2	⬇ 3	⬇ 2		31.1	0.5	3.0	0.4	65.0
44	NerdyGirls	205219	⬇ 3	⬆ 1				41.4	6.7	51.9
45	NanJing Tech	200131	⬆ 36	⬆ 4	⬆ 1		26.0		70.3	3.7
46	GIMPS Team Philippines	197826	⬇ 4	⬇ 2	⬇ 1		53.7		9.2	1.6	31.6
47	Canada	189861	⬇ 3				4.6	1.9	67.3	26.1
48	Team Tartan	181175	⬇ 2						76.7	23.3
49	OverclockerAustralia	149826	⬇ 1	⬆ 1			58.6		17.7	20.2
50	GIMPS.NZ	133653	⬆ 2	⬆ 1			79.7		10.0	10.2
51	Team China	129361		⬆ 1					99.7	0.3
52	Unicamp	125716	⬆ 1	⬆ 1			68.9		27.0	4.1
53	GIMPS.France	118554	⬆ 5	⬆ 1			9.4	67.6	4.8	6.4	11.7
54	IOTA	106268	⬆ 23	⬆ 5	⬆ 1		95.3		3.2	1.6
55	GIMPS.Portugal	102279	⬆ 56	⬆ 8	⬆ 1	⬆ 1	44.8	50.8		4.4
56	SASAKI	102011	⬇ 2	⬇ 1	⬇ 2	⬇ 1	100.0
57	GIMPS China	95788	⬇ 8	⬇ 1			88.3		6.4		4.9
58	AMD Users	93382	⬆ 6	⬆ 2	⬆ 1		50.0	0.6	10.2	38.8	0.4
59	Wisconsin	87237	⬇ 3	⬇ 1	⬆ 2		39.4		31.5	29.1
60	UIUC	87170	⬆ 1	⬆ 1					68.3	31.7
61	BitMEX Research	82795	⬇ 11	⬇ 4	⬆ 1				96.2	3.8
62	SHADO	79240	⬇ 3	⬆ 4	⬆ 1				62.5	18.4	11.5	1.5
63	randomteam	78176	⬇ 23	⬇ 17	⬇ 5						100.0
64	Net-Work	76475	⬇ 2	⬆ 1			5.1	2.0			85.7
65	Wile E. Coyote	75352	⬆ 6	⬆ 3	⬆ 1				75.5	0.4	24.1
66	Cap'n Entropy's Cavalcade of Wonderment	74710	⬇ 9	⬇ 4	⬇ 1	⬆ 1	72.3	7.0	17.8	2.8
67	Eratosthenes Sieve	74031	⬇ 4			⬇ 1	0.7		95.3	3.9
68	Esperanto	66620	⬇ 3	⬆ 1				26.1	4.8	68.9	0.2
69	AJ	64908	⬇ 3	⬆ 1					75.7	24.3
70	S147127	64227	⬆ 2	⬆ 2	⬆ 1		30.8		20.1	49.1
71	Team Israel	63356	⬇ 1		⬆ 1	⬆ 1	97.1		2.5	0.4
72	ParadoxZ Commando	62391	⬇ 5	⬆ 1	⬇ 2	⬇ 1			73.4	26.6
73	EgyptianPolymaths	58460	⬇ 18	⬇ 9				73.8			9.1
74	VIPR	58418	⬆ 21	⬆ 9			88.3		8.1	3.3
75	Team_Italia	54177	⬇ 6	⬇ 1			3.2		66.2	24.5	2.3	3.1
76	Hungary	53270	⬇ 16	⬇ 1					4.5	1.9	93.5
77	Brno University of Technology	48761	⬇ 4	⬆ 1				9.2	72.6	18.2
78	ComputerraRU	47934	⬇ 2	⬇ 2			21.5		67.0	11.5
79	GIMPS.NEO	44394	⬇ 11	⬇ 2					78.9	21.1
80	Team Viet Nam	40643	⬇ 2		⬆ 1		30.0		32.7	25.9	11.3
81	Team Belgium	38771	⬇ 7	⬇ 2	⬇ 1		1.4	2.7	34.8	23.5	37.7
82	Turku	36285	⬆ 1		⬆ 1				100.0
83	HardOCP	36117	⬆ 1	⬇ 2	⬇ 1				71.4	28.6
84	huskers-gimps	35921	⬆ 3						74.5	25.5
85	Debian	33368	⬆ 1		⬆ 1	⬆ 1			98.2	1.8
86	Team H	32853	⬇ 4		⬇ 1	⬇ 1	13.3		86.1	0.6
87	Hermessz	32549	⬇ 2			⬆ 1	63.8		36.2
88	ᕙ(⇀‸↼‶)ᕗ	32334	⬆ 5	⬆ 2		⬇ 1	0.7		98.9	0.4
89	baraCUDA	29906	⬆ 137	⬆ 34					100.0
90	Small-Team-2000	28118	⬆ 1	⬇ 1					5.6	94.4
91	Channel 4	27359	⬆ 3	⬆ 1					81.6	18.4
92	socal_prime	26513	⬇ 3	⬇ 1					73.7	26.1	0.1
93	The Fellowship of Infinity	25774	⬆ 3						99.5	0.5
94	MurrayInfoSys	24888	⬆ 8	⬆ 2					65.7	34.3
95	Costa Rica	23966	⬆ 2						75.3	24.3
96	Aiblspitz	20532	⬆ 30	⬆ 8	⬆ 2		0.1	79.1	7.7	13.1
97	Georgia Tech	20319	⬇ 18	⬆ 1					100.0
98	Team Retired	18556	⬆ 1	⬆ 1	⬆ 1				29.5	11.4
99	A Single Engineer	18488	⬆ 4	⬆ 1	⬆ 1				75.8	24.2
100	PrimitiveRootsCircle	17640	⬆ 1	⬆ 3	⬆ 1	⬆ 2	17.1		53.9	26.3	2.7
101	SpartaAlumni	17504	⬆ 4	⬇ 4	⬆ 1	⬇ 1			71.6	28.4
102	GIMPS Romania	17357	⬆ 43	⬇ 1	⬆ 1	⬇ 1	74.1		22.9	3.0
103	MES-Team	16755	⬇ 15	⬇ 9	⬆ 1		69.0	7.5		23.5
104	Com Systems (RU)	15014	⬆ 25	⬆ 6	⬆ 2				67.6	32.4
105	LimePrime	15012	⬇ 15					9.4	78.4	12.2
106	Spain	14266	⬆ 4	⬆ 2	⬆ 1				71.5	28.5
107	NUST	14223	⬆ 6		⬆ 1		16.4	74.6	5.9	3.0
108	TurkishMath	13636	⬆ 28	⬆ 10	⬆ 6				88.7	11.3
109	moeses	13368	⬆ 7	⬆ 3	⬆ 1				99.1	0.9
110	Ozzie Prime	12439	⬇ 10	⬇ 4	⬇ 1			1.4	38.1	15.1		45.4
111	Nerdfighters for Mersenne Primes	12207	⬇ 3	⬆ 2					90.4	9.6
112	Quantus	12170	⬇ 5	⬆ 2			10.0		13.0	25.1		51.9
113	RobotechResearch	12072	⬆ 17	⬆ 4					46.5	53.5
114	Team Slovenia	11690		⬆ 1	⬆ 1				66.7	33.3
115	Team Finland	11275	⬇ 17	⬇ 4	⬆ 1		1.1		96.5		2.4
116	SETI.Germany	11194	⬇ 4		⬆ 1			8.5	14.2	77.4
117	FREE ROBUX	10852	⬆ 4	⬆ 2	⬆ 1				100.0
118	Royal Military College of Canada	10691	⬆ 5	⬆ 3	⬆ 1		89.7		7.9	2.4
119	Portland State University	10555	⬇ 15	⬇ 10	⬆ 1			43.3	39.0	17.7
120	Granada	9831	⬇ 1		⬆ 1		25.9		24.0	49.4
121	Syntony	9681	⬆ 7	⬆ 3	⬆ 1					100.0
122	Shaffer's Studio	9588	⬆ 9	⬆ 6	⬆ 5				89.4	10.5
123	GIMPS.Taiwan	9377	⬇ 8	⬆ 3					85.8	13.6	0.1
124	JiBoTeam	9308	⬆ 11	⬆ 3						100.0
125	University of Waterloo	9151	⬆ 14	⬆ 5					100.0
126	LTT fans	9056	⬇ 51	⬇ 38	⬇ 30		92.5				7.5
127	Mensa	8910	⬇ 10	⬇ 2	⬇ 1				88.2	11.8
128	Die Zeitfinder	7865	⬆ 6	⬆ 1	⬆ 2				90.1	9.9
129	math.auth.gr	7704	⬆ 56	⬆ 5	⬆ 2				100.0
130	FreeBSD	7556	⬇ 6	⬆ 8	⬆ 3				73.2	26.8
131	Prime Rib	7358	⬆ 11	⬆ 9	⬆ 3				96.8	3.2
132	Team Norway	7285	⬇ 26	⬇ 10	⬇ 4		75.3			7.0	17.3
133	Abacus	7134	⬇ 13	⬇ 2	⬆ 2				98.9	1.1
134	Triangle	7106	⬇ 2	⬇ 1	⬇ 5				98.8	1.2
135	Pavlicin	6707	⬆ 91	⬆ 88	⬆ 1		99.9	0.1
136	FactorMania	6572	⬆ 22	⬆ 6	⬆ 1			56.9			43.1
137	irowiki	6539		⬆ 2	⬆ 1					100.0
138	Brasil	6278	⬆ 3	⬇ 1	⬆ 2	⬆ 1			75.0	24.9
139	Team Splunk	6210	⬇ 1	⬇ 4	⬇ 7	⬇ 1		24.6	75.4
140	Team Christensen	5917	⬆ 4	⬆ 3	⬆ 1					100.0
141	México mágico	5805	⬆ 13	⬆ 15	⬆ 1				81.9	18.1
142	Arpan Sen Labs	5617	⬆ 59	⬆ 17	⬆ 4				51.9	48.1
143	Elisabeth-von-Thadden-Schule	5505	⬆ 3	⬆ 1	⬆ 1				42.1	57.9
144	Hong Kong GIMP	5486	⬆ 7	⬆ 8	⬆ 1				71.5	28.5
145	Politeknik Banting, Selangor	5263	⬇ 27	⬇ 13	⬆ 2	⬆ 1	79.6		15.0	5.4
146	KnightLight	5254	⬆ 60	⬇ 1	⬆ 2	⬆ 1				100.0
147	Hyperion	5229	⬇ 25	⬇ 11	⬇ 4	⬇ 2				10.9
148	nmbarek_team	4949	⬆ 1		⬆ 1				99.8	0.2
149	teamMALI	4925	⬆ 1		⬆ 1				79.5	20.5
150	Crunching@EVGA	4888	⬆ 5		⬆ 1				99.7	0.3
151	Korea.Prime	4706	⬆ 9	⬆ 2	⬆ 1				66.8	33.2
152	Morocco	4348	⬆ 37	⬆ 17	⬆ 2				56.9	43.1
153	The_Dude_Abides	4159	⬇ 6	⬆ 1			8.5			71.6
154	DePaul MAT 141	4145	⬆ 72	⬆ 38	⬆ 5				99.5	0.5
155	Noam Karni Team	3962	⬆ 6	⬆ 3					79.7	20.3
156	Olympic College	3828		⬆ 1						100.0
157	YESHUA IS THE MESSIAH	3805	⬆ 69	⬆ 8					99.0	1.0
158	Server66	3762	⬇ 33	⬆ 2			100.0
159	MES22-Team	3277	⬇ 32	⬇ 12	⬆ 1	⬆ 1	100.0
160	Team Austria	3188	⬇ 80	⬇ 58	⬇ 21	⬇ 1	39.9	6.6	53.6
161	Phi Kappa Theta	3141	⬆ 3						52.0	48.0
162	zeit	3091	⬇ 9	⬆ 1	⬆ 1		7.9			92.1
163	Kabylie	3051	⬇ 6	⬆ 3	⬆ 1		14.5	1.4	51.0	33.0
164	Team_Brazil	2999	⬇ 1	⬆ 3	⬆ 1		83.1	0.2		16.7
165	Furry Primes	2983	⬇ 25	⬇ 10	⬇ 3		82.8			17.2
166	GIMPS.Hong Kong	2871	⬇ 4	⬇ 4			2.7		56.2	41.1
167	Pi Rho	2499	⬇ 1	⬆ 1	⬆ 1				67.1	32.9
168	GIMPSMalaysia	2394	⬇ 1	⬆ 2	⬆ 1				66.8	33.2
169	VRS_SE	2364	⬇ 1	⬆ 2	⬆ 1				66.7	33.3
170	GIMPS_KS	2199	⬆ 2	⬆ 2	⬆ 1				36.5	62.0	1.4
171	SU Prime Pirates	2048	⬇ 28	⬇ 25	⬇ 4				77.2	22.8
172	The Prime Pioneers	1919	⬆ 1	⬆ 3				100.0
173	The Pensis	1869	⬆ 3	⬆ 3						100.0
174	San Francisco	1586	⬆ 6	⬆ 4					100.0
175	hreid	1575	⬆ 22	⬆ 4					100.0
176	cr_colorado	1549	⬆ 6	⬆ 4						100.0
177	Obsidian	1542	⬇ 3	⬆ 4						100.0
178	I Love Canadian Natural Resources	1514	⬇ 13	⬇ 4						100.0
179	CZAsTc	1448	⬆ 4	⬆ 4	⬆ 1				99.5	0.5
180	3DCenter.org	1360	⬇ 21	⬇ 7	⬇ 1						100.0
181	WSU Cougars	1357	⬇ 33	⬆ 3					56.6	43.3
182	Join Us 😈	1060	⬆ 17	⬆ 5	⬆ 1	⬆ 1	66.8			33.2
183	youngfun429	1037	⬇ 50	⬇ 19	⬇ 1	⬇ 1			75.3	24.7
184	TunisianTeam	1031	⬇ 14	⬆ 4					75.0	25.0
185	Therian Primes	1007	⬆ 6	⬆ 4				14.6		52.4	33.0
186	Czech National Team	903	⬆ 2	⬆ 4			4.1		91.8	0.8	2.0
187	TimE4This	876		⬆ 4						100.0
188	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 35					100.0
189	AWC	801	⬆ 4	⬆ 4	⬆ 1				100.0
190	F=dp/dt	799	⬇ 13	⬇ 13	⬆ 1				99.3	0.7
191	GIMPS Asturias	794	⬆ 3	⬆ 3	⬆ 1				99.6	0.4
192	Weatopians	793	⬆ 3	⬆ 3	⬆ 1				99.7	0.3
193	GIMPS_IOM	685	⬇ 15	⬇ 8	⬇ 4		100.0
194	SGDynamo Dresden	565	⬆ 6	⬆ 4	⬆ 1		100.0
195	PrimeObsession	539	⬆ 7	⬆ 4	⬆ 1					100.0
196	Zorin OS Crew	465	⬇ 17	⬇ 14	⬆ 1					100.0
197	GIMPS.Romania	422	⬆ 29	⬆ 26	⬆ 2				100.0
198	His Dark Materials	402	⬇ 12	⬇ 2							99.8
199	Optimists Prime	304	⬇ 15	⬇ 2	⬆ 2			100.0
200	PARG team	298	⬆ 22	⬆ 19	⬆ 2					92.8	7.2
201	Yurunago	276	⬆ 6	⬆ 1	⬆ 2					100.0
202	Team Dominik Radler	275	⬆ 2	⬇ 1	⬆ 2		100.0
203	Vegan	275	⬆ 23		⬆ 2					100.0
204	Byberg Nordic Prime	265	⬇ 8		⬆ 2					100.0
205	FDY	265	⬆ 21		⬆ 2					100.0
206	Subprime Searches	256	⬇ 31	⬇ 20	⬇ 12					100.0
207	GIMPS Hams	253	⬆ 3	⬆ 1	⬆ 2			100.0
208	miiro	240	⬆ 8	⬆ 5	⬆ 2		100.0
209	DividerHunt	221	⬆ 2		⬆ 2		100.0
210	alan145	220	⬇ 20	⬇ 10	⬇ 10		100.0
211	Manri Costa Rica	213	⬆ 2	⬇ 1	⬆ 1					100.0
212	/r/counting	184	⬇ 7		⬆ 1
213	GIMPS.Peace	122	⬆ 4	⬆ 2	⬆ 1		44.7	55.3
214	TeamUbuntu	121	⬆ 4	⬆ 2	⬆ 1					100.0
215	sannerud.com	108	⬆ 4	⬆ 2	⬆ 1		43.1				19.4	37.5
216	Team Bulgaria	65	⬇ 1	⬇ 2	⬆ 1						100.0
217	PROMYS	23	⬆ 4	⬆ 1	⬆ 1						100.0
218	yfinder	1	⬆ 7	⬆ 4	⬆ 1					100.0