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 2026-06-28 13:00 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	595844757	⬆ 1				0.1	98.5	0.1		1.3
2	GIMPS.Russia	353419929	⬇ 1				0.4		0.1		99.4
3	Ars Technica Team Prime Rib	136066270	⬆ 3	⬆ 1				99.2		0.8
4	PrimeNet	122351250	⬇ 1	⬆ 1			0.2	98.0	0.7	1.0	0.1
5	POLAND	111651484	⬇ 1	⬇ 2			0.9	95.6	0.5	0.1	2.9
6	-Too many Ones-	29590285	⬇ 1				0.1	50.2			49.7
7	Team#1	20745932	⬆ 7	⬆ 1	⬆ 1	⬆ 1	2.1	18.4	48.9	28.4	2.2
8	GIMPSChina	20394879		⬇ 1	⬇ 1	⬇ 1	60.5	23.1	4.4	0.6	11.4
9	GW's legions	13905754	⬆ 2					0.8	37.5	1.7	59.9
10	UCM-curtisc	11750636	⬆ 3						99.3	0.7
11	Team-Deutschland	11560495	⬆ 1				2.7	57.0	0.9	0.1	39.0
12	More Power!!!	10469326	⬇ 3				17.1	69.7	2.7	2.3	8.2
13	Numberphile	8582459	⬆ 6	⬆ 4	⬆ 3		4.7	22.4	7.4	2.1	63.3
14	TeamUK	6968836	⬆ 1				48.3	2.6	19.9	1.6	27.5	0.1
15	Porta Kruse	6371824	⬆ 1				2.0	0.5			91.2	6.2
16	One Man Team	6201479	⬇ 6	⬇ 3	⬇ 3			99.1	0.9
17	GPU to 72	4905200		⬇ 1			51.3	28.5	0.5	3.8	15.6
18	tsc	3342354	⬆ 2	⬆ 1			63.6	3.0	1.0	0.3	32.0
19	UW Eau Claire	3291341	⬆ 3	⬇ 1			90.2		7.2	2.7
20	Argentina	2527183	⬆ 45		⬆ 1	⬆ 1	92.0		8.0
21	UKRAINE	2526962			⬇ 1	⬇ 1	9.6	6.2	72.9	11.2
22	Wikipedia	1927258	⬆ 1	⬆ 1			57.6	34.6	4.7	2.1	0.8
23	SpongeBob SquarePants	1509911	⬇ 5	⬇ 1				30.6	59.9	9.5
24	GIMPS.Korea	1340745	⬆ 5	⬆ 2			88.0	4.7	3.8	0.9	2.4
25	GIMPS.Occitania	1202783	⬆ 3					4.4				95.6
26	Swedes Of Primes	1142992		⬇ 2			1.2	78.7	17.0	3.1
27	Dutch Power Cows	1105014	⬇ 3				43.3	10.6	2.0	2.4	41.8
28	MBAi.Cloud	835553	⬆ 2						99.9	0.1
29	MATHSareREAL	578886	⬆ 2	⬆ 1			96.2		2.5	1.3
30	Buhr	500284	⬆ 5	⬆ 2			52.2	4.7	16.9	5.3	20.9
31	404 - "Primes not Found"	486475	⬆ 15	⬆ 8	⬆ 2		86.9		13.0	0.1
32	citizenscience.ru	456039	⬆ 1	⬇ 1	⬇ 1		86.6	2.6	6.1	0.9	3.3	0.4
33	GIMPS.USA	453629	⬇ 8	⬆ 9	⬆ 2		32.0	47.1	14.6	3.8	2.0
34	Colorado School of Mines	384055	⬆ 5	⬆ 3	⬆ 2		90.5		8.3	1.2
35	GIMPS.Japan	377957	⬇ 8	⬇ 2	⬇ 1		30.8		32.9	10.3	25.9
36	Rechenkraft.net	373201	⬇ 2	⬇ 2	⬆ 1		0.5	51.8	6.0	6.7	35.1
37	Terry Kim Team	368123	⬇ 1	⬇ 2	⬆ 1		95.6		3.3	0.7
38	MOXA	355801	⬇ 6	⬇ 2	⬆ 1		99.2		0.7	0.2
39	unRAID	312233	⬇ 32	⬇ 10	⬇ 7			70.0	27.1	2.3	0.6
40	S485122	304196	⬇ 3	⬇ 2				95.1		4.9
41	Smoke-it	263806	⬇ 3	⬇ 1			90.4	7.2	1.8
42	YahsTeam	245250		⬆ 1			88.3		9.3	2.4
43	nranks	236514	⬆ 1	⬇ 2			31.2	0.5	2.7	0.4	65.3
44	NanJing Tech	212992	⬆ 16	⬆ 2			24.5		72.0	3.5
45	GIMPS Team Philippines	202257	⬇ 4		⬆ 1		51.9		9.8	1.7	32.5
46	NerdyGirls	200676	⬇ 3	⬇ 2	⬇ 1			42.3	5.2	52.5
47	Canada	191437	⬇ 2	⬆ 1			7.4	1.7	64.7	26.2
48	Team Tartan	176609	⬇ 1	⬇ 1					77.5	22.5
49	OverclockerAustralia	148207	⬇ 1				59.3		15.8	21.1
50	GIMPS.NZ	134195	⬆ 2				79.8	0.2	10.6	9.4	0.1
51	Team China	127995							99.7	0.3
52	Unicamp	126525	⬆ 1				68.5		27.5	4.1
53	GIMPS.France	117158	⬆ 2				9.5	68.4	4.8	5.3	11.8
54	IOTA	110823	⬆ 18	⬆ 2			95.5		3.0	1.5
55	SASAKI	97461	⬇ 1				100.0
56	AMD Users	95438	⬆ 6	⬆ 3	⬆ 1		48.9	0.6	10.0	40.1	0.4
57	GIMPS.Portugal	89587	⬆ 49	⬆ 1	⬇ 1		51.1	46.4		2.5
58	UIUC	89016	⬆ 3	⬆ 4	⬆ 1				67.9	32.1
59	GIMPS China	85200	⬇ 10	⬇ 2	⬇ 1		86.9		7.2		5.6
60	Wisconsin	82921	⬇ 3	⬆ 1			38.4		31.3	30.3
61	SHADO	79823	⬇ 2	⬆ 2					63.1	18.3	11.3	1.3
62	Wile E. Coyote	78296	⬆ 7	⬆ 4					74.9	0.4	24.6
63	Net-Work	74936		⬆ 2	⬆ 1		5.5	2.1			84.3
64	VIPR	73932	⬆ 28	⬆ 12	⬆ 4	⬆ 1	91.4		6.4	1.9
65	Eratosthenes Sieve	72691	⬇ 1	⬆ 2		⬇ 1	0.8		95.2	3.9
66	BitMEX Research	72009	⬇ 16	⬇ 6	⬇ 3				95.6	4.4
67	randomteam	71704	⬇ 27	⬇ 13							100.0
68	Cap'n Entropy's Cavalcade of Wonderment	69664	⬇ 10	⬇ 4	⬇ 2		70.1	7.7	19.1	3.1
69	Esperanto	66109	⬇ 3					26.2	4.8	68.8	0.2
70	S147127	64858	⬆ 4	⬆ 2	⬆ 1		31.2		21.1	47.7
71	Team Israel	64667	⬆ 2	⬆ 2	⬇ 1		97.1		2.5	0.4
72	ParadoxZ Commando	62957	⬇ 1	⬇ 1					72.8	27.2
73	AJ	59436	⬇ 5	⬇ 3					74.8	25.2
74	Team_Italia	55818	⬇ 4	⬆ 1	⬆ 1		3.3	0.6	64.2	25.2	2.9	3.0
75	EgyptianPolymaths	53718	⬇ 19	⬇ 7	⬇ 1			80.3
76	Hungary	52997	⬇ 9	⬇ 2					4.6	1.4	93.9
77	Brno University of Technology	47913	⬇ 1					7.0	74.0	19.1
78	ComputerraRU	43679	⬇ 1				24.5		71.8	3.8
79	GIMPS.NEO	40884	⬇ 4						78.2	21.8
80	Team Belgium	38694	⬇ 2	⬆ 1			1.4	2.5	32.8	25.6	37.7
81	Turku	36285	⬆ 1	⬆ 2					100.0
82	Team Viet Nam	36031	⬇ 2	⬇ 2			33.9		36.9	29.2
83	huskers-gimps	35930	⬆ 3	⬆ 1					74.5	25.5
84	HardOCP	35341	⬇ 3	⬇ 2					70.7	29.3
85	Team H	33698	⬇ 1		⬆ 2		12.9		86.5	0.5
86	Hermessz	33404	⬆ 1	⬆ 2	⬆ 2	⬆ 1	64.7		35.3
87	Debian	33368	⬇ 2	⬇ 1	⬇ 1	⬇ 1			98.2	1.8
88	ᕙ(⇀‸↼‶)ᕗ	33132	⬆ 3	⬇ 1	⬇ 3		0.6		98.9	0.4
89	baraCUDA	29906	⬆ 132						100.0
90	Small-Team-2000	27934							5.6	94.4
91	Channel 4	27356	⬆ 4	⬆ 2					81.6	18.4
92	The Fellowship of Infinity	26562	⬆ 2						99.5	0.5
93	Costa Rica	25654	⬆ 3	⬆ 2	⬆ 2				77.0	22.7
94	MurrayInfoSys	24930	⬆ 3						65.6	34.4
95	socal_prime	24676	⬇ 7	⬇ 4	⬇ 2				72.9	26.8	0.1
96	Aiblspitz	24149	⬆ 20	⬆ 4			0.1	82.1	6.5	11.2
97	Georgia Tech	20319	⬆ 15						100.0
98	A Single Engineer	18488	⬆ 2	⬆ 3					75.8	24.2
99	Team Retired	18163	⬇ 1						30.2	11.7
100	PrimitiveRootsCircle	17774	⬇ 1	⬆ 2	⬆ 1		14.8		53.5	29.0	2.7
101	GIMPS Romania	17357	⬆ 42	⬆ 3	⬆ 1		74.1		22.9	3.0
102	SpartaAlumni	16768	⬇ 1	⬇ 4	⬇ 2				74.8	25.2
103	LimePrime	16704	⬇ 10	⬆ 2				8.5	80.4	11.1
104	Com Systems (RU)	16599	⬆ 19	⬆ 4					70.7	29.3
105	MES-Team	14754	⬇ 16	⬇ 2			71.2	7.0		21.9
106	TurkishMath	14435	⬆ 26	⬆ 7	⬆ 2	⬆ 2			89.3	10.7
107	Spain	14266	⬇ 2	⬇ 1	⬇ 1	⬇ 1			71.5	28.5
108	NUST	14223	⬆ 1	⬇ 1	⬇ 1	⬇ 1	16.4	74.6	5.9	3.0
109	RobotechResearch	13385	⬆ 17	⬆ 5					47.8	52.2
110	moeses	12578	⬆ 5						99.1	0.9
111	Nerdfighters for Mersenne Primes	12209	⬇ 8		⬆ 1				90.4	9.6
112	Quantus	12170	⬇ 5		⬆ 1	⬆ 1	10.0		13.0	25.1		51.9
113	Ozzie Prime	12168	⬇ 11	⬇ 4	⬇ 2	⬇ 1		0.7	39.0	15.4		44.9
114	SETI.Germany	11194	⬇ 6	⬆ 4	⬆ 1			8.5	14.2	77.4
115	FREE ROBUX	10852	⬆ 5	⬆ 4	⬆ 1				100.0
116	Team Slovenia	10728	⬇ 2	⬇ 1	⬇ 2				65.4	34.6
117	Royal Military College of Canada	10691	⬆ 5	⬆ 3			89.7		7.9	2.4
118	Team Finland	10532	⬇ 7	⬇ 2			1.5		95.9		2.5
119	Portland State University	10264	⬇ 9	⬇ 2				44.2	40.1	15.7
120	University of Waterloo	10222	⬆ 17	⬆ 9	⬆ 2				97.3	2.7
121	Syntony	9257	⬆ 4	⬆ 1						100.0
122	LTT fans	9056	⬇ 43	⬇ 26	⬆ 3		92.5				7.5
123	Granada	8836	⬇ 2	⬇ 2	⬇ 3	⬆ 1	26.0		26.7	46.4
124	Shaffer's Studio	8777	⬆ 5	⬆ 1	⬆ 2	⬆ 1			88.9	11.0
125	Die Zeitfinder	8696	⬆ 2	⬆ 3	⬆ 2	⬆ 1			91.1	8.9
126	JiBoTeam	8639	⬆ 4	⬆ 1	⬇ 2	⬇ 3				100.0
127	math.auth.gr	8551	⬆ 58	⬆ 5	⬆ 2				100.0
128	Pavlicin	8407	⬆ 93	⬆ 10	⬆ 2		79.7	0.1	20.2
129	Mensa	8400	⬇ 16	⬇ 5	⬇ 6				84.3	15.7
130	FreeBSD	8386	⬇ 2	⬆ 4	⬆ 1				75.9	24.1
131	Triangle	7905	⬆ 4		⬆ 1				98.9	1.1
132	GIMPS.Taiwan	7816	⬇ 13	⬇ 9	⬇ 4				83.0	16.3	0.1
133	Server66	7649	⬇ 9	⬆ 25	⬆ 2		100.0
134	Prime Rib	7365	⬆ 7	⬆ 1	⬇ 1				96.7	3.3
135	Abacus	7135	⬇ 1	⬆ 1	⬆ 1				98.9	1.1
136	Team Norway	6789	⬇ 32	⬇ 6	⬇ 2		75.0			7.5	17.1
137	FactorMania	6572	⬆ 19	⬆ 3				56.9			43.1
138	irowiki	6116		⬆ 3						100.0
139	Team Christensen	5977	⬆ 5	⬆ 3	⬆ 1	⬆ 1				100.0
140	Arpan Sen Labs	5623	⬆ 33	⬆ 8	⬆ 1	⬆ 1			51.8	48.2
141	México mágico	5564	⬆ 13	⬆ 2	⬆ 1	⬆ 1			85.4	14.6
142	Elisabeth-von-Thadden-Schule	5505	⬆ 3	⬆ 2	⬆ 1	⬆ 1			42.1	57.9
143	Brasil	5279	⬇ 3	⬇ 6	⬇ 4	⬇ 4			74.3	25.6
144	Morocco	5160	⬆ 44	⬆ 19	⬆ 1				63.4	36.6
145	KnightLight	5124	⬆ 59	⬆ 2	⬇ 1					100.0
146	nmbarek_team	4946	⬆ 2	⬆ 3	⬆ 1				99.9	0.1
147	DePaul MAT 141	4934	⬆ 74	⬆ 20	⬆ 1				99.6	0.4
148	Crunching@EVGA	4888	⬆ 7	⬆ 3	⬆ 1				99.7	0.3
149	The_Dude_Abides	4799	⬆ 1	⬆ 5	⬇ 3		6.4			73.8	0.6
150	Korea.Prime	4709	⬆ 10	⬆ 2	⬆ 1				66.8	33.2
151	Hong Kong GIMP	4706	⬇ 2	⬇ 6	⬆ 1				66.8	33.2
152	YESHUA IS THE MESSIAH	4648	⬆ 69	⬆ 7	⬆ 1				99.2	0.8
153	Hyperion	4449	⬇ 22	⬇ 14	⬇ 3					12.7
154	teamMALI	4158	⬇ 7	⬇ 4					75.7	24.3
155	Noam Karni Team	3963	⬆ 2						79.7	20.3
156	MES22-Team	3277	⬇ 23	⬆ 6	⬆ 2		100.0
157	Phi Kappa Theta	3152	⬆ 7	⬇ 1	⬆ 2				51.8	48.1
158	Politeknik Banting, Selangor	3101	⬇ 40	⬇ 12	⬆ 2		65.4		25.5	9.1
159	Olympic College	3075	⬇ 7	⬇ 2	⬇ 2					100.0
160	Team_Brazil	2999	⬆ 3	⬆ 5	⬆ 1		83.1	0.2		16.7
161	GIMPS.Hong Kong	2650	⬇ 2	⬆ 5	⬆ 3		2.9		60.9	36.2
162	zeit	2598	⬇ 9	⬇ 2			9.4			90.6
163	Furry Primes	2531	⬇ 17	⬇ 2			79.7			20.3
164	Pi Rho	2499	⬆ 2	⬆ 4	⬆ 1				67.1	32.9
165	GIMPSMalaysia	2394	⬆ 2	⬆ 4	⬆ 1				66.8	33.2
166	Team Splunk	2324	⬇ 30	⬇ 33	⬇ 10				100.0
167	CZAsTc	2285	⬆ 17	⬆ 15	⬆ 1				99.7	0.3
168	Kabylie	2209	⬇ 10	⬇ 4	⬆ 1		17.3	1.9	35.1	45.6
169	Team Austria	2199	⬇ 86	⬇ 43	⬆ 1		12.8	9.5	77.7
170	GIMPS_KS	2199		⬆ 1	⬆ 1				36.5	62.0	1.4
171	VRS_SE	2105	⬇ 3	⬇ 1	⬇ 4				74.9	25.1
172	The Prime Pioneers	1919	⬆ 3					100.0
173	The Pensis	1869	⬆ 3							100.0
174	San Francisco	1586	⬆ 5	⬆ 1	⬆ 1				100.0
175	hreid	1575	⬆ 22	⬆ 1	⬆ 1				100.0
176	cr_colorado	1549	⬆ 5	⬆ 2	⬆ 1					100.0
177	Obsidian	1542	⬇ 6	⬆ 2	⬆ 1					100.0
178	I Love Canadian Natural Resources	1514	⬇ 13	⬆ 2	⬆ 1					100.0
179	3DCenter.org	1194	⬇ 17	⬇ 5	⬆ 1						100.0
180	Amserver	1066	⬆ 41	⬆ 42	⬆ 1		100.0
181	Join Us 😈	1060	⬆ 17	⬆ 3	⬆ 1		66.8			33.2
182	youngfun429	1037	⬇ 43	⬇ 1	⬆ 1				75.3	24.7
183	TunisianTeam	1031	⬇ 11	⬆ 4	⬆ 1				75.0	25.0
184	Therian Primes	1007	⬆ 5	⬆ 4	⬆ 1			14.6		52.4	33.0
185	Czech National Team	903	⬆ 1	⬆ 4	⬆ 1		4.1		91.8	0.8	2.0
186	TimE4This	876	⬆ 6	⬆ 4	⬆ 1					100.0
187	RafaÅ‚ HacuÅ›	860	⬆ 34	⬆ 4	⬆ 1				100.0
188	AWC	801	⬆ 5	⬆ 4	⬆ 1				100.0
189	SU Prime Pirates	799	⬇ 47	⬇ 36	⬇ 15				99.2	0.8
190	F=dp/dt	797	⬇ 13	⬆ 3					99.6	0.4
191	GIMPS Asturias	794	⬆ 3	⬆ 3					99.6	0.4
192	Weatopians	793	⬆ 3	⬆ 3					99.7	0.3
193	SGDynamo Dresden	564	⬆ 6	⬆ 4	⬆ 1		100.0
194	PARG team	563	⬆ 24	⬆ 9	⬆ 1					96.2	3.8
195	PrimeObsession	539	⬆ 5	⬆ 3	⬆ 1					100.0
196	GIMPS.Romania	422	⬆ 25	⬆ 4	⬆ 2	⬆ 1			100.0
197	GIMPS_IOM	419	⬇ 19	⬇ 12	⬇ 4	⬇ 1	100.0
198	His Dark Materials	348	⬇ 11	⬇ 2	⬆ 1						99.8
199	Yurunago	276	⬆ 6	⬆ 5	⬆ 1					100.0
200	Vegan	275	⬆ 21	⬆ 6	⬆ 1					100.0
201	Byberg Nordic Prime	265	⬇ 5	⬆ 6	⬆ 1					100.0
202	FDY	265	⬆ 19	⬆ 6	⬆ 1					100.0
203	Subprime Searches	256	⬇ 29	⬇ 17	⬆ 1					100.0
204	GIMPS Hams	253	⬆ 4	⬆ 7	⬆ 1			100.0
205	WSU Cougars	247	⬇ 44	⬇ 22	⬇ 8					100.0
206	Team Dominik Radler	244	⬇ 4	⬇ 1			100.0
207	miiro	240	⬆ 6	⬆ 8	⬆ 1	⬆ 1	100.0
208	Zorin OS Crew	237	⬇ 25	⬇ 9	⬆ 1	⬆ 1				100.0
209	DividerHunt	221		⬆ 3	⬆ 1	⬆ 1	100.0
210	alan145	220	⬇ 19	⬇ 9	⬆ 1	⬆ 1	100.0
211	Manri Costa Rica	213	⬇ 1	⬆ 2	⬆ 1	⬆ 1				100.0
212	/r/counting	184	⬇ 9	⬆ 2	⬆ 1	⬆ 1
213	GIMPS.Peace	122	⬆ 1	⬆ 3	⬆ 1	⬆ 1	44.7	55.3
214	TeamUbuntu	121	⬆ 1	⬆ 3	⬆ 1	⬆ 1				100.0
215	sannerud.com	108	⬆ 1	⬆ 3	⬆ 1	⬆ 1	43.1				19.4	37.5
216	Team Bulgaria	46	⬇ 4	⬆ 3	⬆ 2	⬆ 1					100.0
217	PROMYS	23		⬆ 3		⬆ 1					100.0
218	yfinder	1	⬆ 2	⬆ 3	⬆ 1	⬆ 1				100.0