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 2026-06-29 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	595843825	⬆ 1				0.1	98.5	0.1		1.3
2	GIMPS.Russia	353414311	⬇ 1				0.4		0.1		99.4
3	PrimeNet	149914304		⬆ 2	⬆ 1	⬆ 1	0.2	80.0	0.6	0.8	18.4
4	Ars Technica Team Prime Rib	136328645	⬆ 2		⬇ 1	⬇ 1		99.2		0.8
5	POLAND	112085732	⬇ 1	⬇ 2			0.9	95.2	0.5	0.1	3.3
6	-Too many Ones-	29580117	⬇ 1				0.1	50.2			49.7
7	Team#1	20745932	⬆ 7	⬆ 1	⬆ 1		2.1	18.4	48.9	28.4	2.2
8	GIMPSChina	20344985		⬇ 1	⬇ 1		60.3	23.2	4.4	0.6	11.4
9	GW's legions	13909227	⬆ 2					0.8	37.6	1.7	59.9
10	UCM-curtisc	11743940	⬆ 3						99.3	0.7
11	Team-Deutschland	11603352	⬆ 1				2.7	56.8	0.9	0.1	39.3
12	More Power!!!	10446442	⬇ 3				17.1	69.7	2.7	2.3	8.2
13	Numberphile	8602039	⬆ 6	⬆ 4	⬆ 1		4.6	22.7	7.3	2.1	63.2
14	TeamUK	6956198	⬆ 1		⬇ 1		48.2	2.6	20.0	1.6	27.5	0.1
15	Porta Kruse	6371040	⬆ 1				2.0	0.5			91.2	6.2
16	One Man Team	6201479	⬇ 6	⬇ 3				99.1	0.9
17	GPU to 72	4917717		⬇ 1			51.3	28.4	0.6	3.8	15.7
18	UW Eau Claire	3296277	⬆ 3		⬆ 1	⬆ 1	90.2		7.2	2.7
19	tsc	3240507	⬆ 1		⬇ 1	⬇ 1	62.8	2.8	1.1	0.3	33.0
20	Argentina	2560000	⬆ 44		⬆ 1		92.1		7.9
21	UKRAINE	2522368	⬆ 1		⬇ 1		9.5	6.2	73.0	11.2
22	Wikipedia	1927496	⬆ 1	⬆ 1			57.6	34.6	4.7	2.1	0.8
23	SpongeBob SquarePants	1499119	⬇ 5	⬇ 1				30.5	60.2	9.3
24	GIMPS.Korea	1347363	⬆ 5	⬆ 2			88.1	4.7	3.7	0.9	2.4
25	GIMPS.Occitania	1202783	⬆ 3					4.4				95.6
26	Swedes Of Primes	1138308		⬇ 2			1.2	78.6	17.1	3.1
27	Dutch Power Cows	1098976	⬇ 3				43.5	10.6	1.5	2.4	42.0
28	MBAi.Cloud	835269	⬆ 2						99.9	0.1
29	MATHSareREAL	578886	⬆ 2				96.2		2.5	1.3
30	Buhr	500032	⬆ 4	⬆ 2			52.3	4.8	16.8	5.3	20.9
31	404 - "Primes not Found"	496883	⬆ 15	⬆ 8	⬆ 1		87.1		12.7	0.1
32	GIMPS.USA	454546	⬇ 7	⬆ 10	⬆ 3	⬆ 1	32.0	47.0	14.8	3.8	2.1
33	citizenscience.ru	452531		⬇ 2	⬇ 2	⬇ 1	86.7	2.5	6.2	1.0	3.4	0.4
34	Colorado School of Mines	384330	⬆ 5	⬆ 3	⬆ 2		90.4		8.3	1.3
35	GIMPS.Japan	374937	⬇ 8	⬇ 2	⬇ 1		31.1		32.7	10.4	25.7
36	Rechenkraft.net	373248	⬇ 1	⬇ 2	⬆ 1		0.5	51.7	6.0	6.8	35.1
37	Terry Kim Team	368123	⬇ 1	⬇ 2	⬆ 1		95.6		3.3	0.7
38	MOXA	355745	⬇ 6	⬇ 2	⬆ 1		99.2		0.7	0.2
39	unRAID	306294	⬇ 32	⬇ 9	⬇ 6			69.4	27.6	2.3	0.6
40	S485122	304423	⬇ 3	⬇ 2				95.0		5.0
41	Smoke-it	263806	⬇ 3	⬇ 1			90.4	7.2	1.8
42	YahsTeam	245417		⬆ 1			88.3		9.3	2.4
43	nranks	236695	⬆ 1	⬇ 2			31.3	0.5	2.7	0.4	65.2
44	NanJing Tech	213812	⬆ 16	⬆ 2			24.4		72.1	3.4
45	GIMPS Team Philippines	202509	⬇ 4		⬆ 1		51.8		9.8	1.7	32.5
46	NerdyGirls	200677	⬇ 3	⬇ 2	⬇ 1			42.3	5.2	52.5
47	Canada	191434	⬇ 2	⬆ 1			7.4	1.7	64.7	26.2
48	Team Tartan	176863	⬇ 1	⬇ 1					77.4	22.6
49	OverclockerAustralia	147788	⬇ 1				59.4		15.8	20.8
50	GIMPS.NZ	134356	⬆ 2				79.8	0.2	10.5	9.4	0.1
51	Team China	127995							99.7	0.3
52	Unicamp	126528	⬆ 1				68.5		27.5	4.1
53	GIMPS.France	117158	⬆ 2				9.5	68.4	4.8	5.3	11.8
54	IOTA	111201	⬆ 17	⬆ 2			95.5		3.0	1.5
55	SASAKI	97170	⬇ 1				100.0
56	AMD Users	95438	⬆ 6	⬆ 3			48.9	0.6	10.0	40.1	0.4
57	GIMPS.Portugal	89587	⬆ 49				51.1	46.4		2.5
58	UIUC	89017	⬆ 3	⬆ 4	⬆ 1				67.9	32.1
59	GIMPS China	84590	⬇ 10	⬇ 1	⬇ 1		86.8		7.3		5.6
60	Wisconsin	82960	⬇ 3	⬆ 1			38.1		31.3	30.6
61	SHADO	79889	⬇ 2	⬆ 2					63.0	18.3	11.4	1.3
62	Wile E. Coyote	78349	⬆ 7	⬆ 4					74.9	0.4	24.7
63	VIPR	75317	⬆ 29	⬆ 13	⬆ 5	⬆ 1	91.6		6.3	1.9
64	Net-Work	74812	⬇ 1	⬆ 1		⬇ 1	5.5	2.1			84.3
65	Eratosthenes Sieve	72691		⬆ 2			0.8		95.2	3.9
66	randomteam	71704	⬇ 26	⬇ 12	⬆ 1	⬆ 1					100.0
67	BitMEX Research	71240	⬇ 17	⬇ 7	⬇ 4	⬇ 1			95.5	4.5
68	Cap'n Entropy's Cavalcade of Wonderment	69340	⬇ 10	⬇ 4	⬇ 2		70.1	7.7	19.2	3.1
69	Esperanto	66320	⬇ 3	⬇ 1				26.0	4.8	69.0	0.2
70	S147127	64980	⬆ 4	⬆ 2	⬆ 1		31.3		21.1	47.6
71	Team Israel	64667	⬆ 2	⬆ 2	⬇ 1		97.1		2.5	0.4
72	ParadoxZ Commando	62971		⬇ 1					72.7	27.3
73	AJ	58648	⬇ 5	⬇ 3					74.5	25.5
74	Team_Italia	56125	⬇ 4	⬆ 1	⬆ 1		3.3	0.6	63.9	25.5	3.0	3.0
75	EgyptianPolymaths	53895	⬇ 19	⬇ 6	⬇ 1			80.1
76	Hungary	52997	⬇ 9	⬇ 2					4.6	1.4	93.9
77	Brno University of Technology	47371	⬇ 1	⬆ 1				5.9	74.8	19.3
78	ComputerraRU	42909	⬇ 1	⬇ 1			24.9		71.2	3.8
79	GIMPS.NEO	40883	⬇ 4						78.2	21.8
80	Team Belgium	38694	⬇ 2	⬆ 1			1.4	2.5	32.8	25.6	37.7
81	Turku	36285	⬆ 2	⬆ 2					100.0
82	Team Viet Nam	36031	⬇ 2	⬇ 2			33.9		36.9	29.2
83	huskers-gimps	35931	⬆ 3	⬆ 1					74.5	25.5
84	HardOCP	35341	⬇ 3	⬇ 2					70.7	29.3
85	Team H	33729	⬇ 3		⬆ 2		13.0		86.4	0.5
86	Hermessz	33434	⬆ 1	⬆ 2	⬆ 2		64.7		35.3
87	Debian	33368	⬇ 2	⬇ 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	29503							5.3	94.7
91	Channel 4	27356	⬆ 5	⬆ 1					81.6	18.4
92	The Fellowship of Infinity	26562	⬆ 2	⬆ 1					99.5	0.5
93	MurrayInfoSys	25988	⬆ 4	⬆ 1	⬆ 1	⬆ 1			66.0	34.0
94	Costa Rica	25654	⬆ 1	⬆ 1	⬆ 1	⬇ 1			77.0	22.7
95	socal_prime	24676	⬇ 7	⬇ 4	⬇ 2				72.9	26.8	0.1
96	Aiblspitz	24421	⬆ 20	⬆ 4			0.1	82.3	6.5	11.1
97	Georgia Tech	20319	⬆ 15						100.0
98	A Single Engineer	18488	⬆ 2	⬆ 3					75.8	24.2
99	Team Retired	18147	⬇ 1						30.2	11.7
100	LimePrime	17494	⬇ 7	⬆ 5	⬆ 3	⬆ 3		8.1	81.3	10.6
101	GIMPS Romania	17357	⬆ 50	⬆ 3	⬆ 1		74.1		22.9	3.0
102	PrimitiveRootsCircle	16982	⬇ 3		⬇ 1	⬇ 2	15.5		51.3	30.4	2.8
103	SpartaAlumni	16768	⬇ 2	⬇ 5	⬇ 3	⬇ 1			74.8	25.2
104	Com Systems (RU)	16599	⬆ 19	⬆ 4					70.7	29.3
105	MES-Team	14662	⬇ 16	⬇ 2			71.0	7.0		22.0
106	TurkishMath	14435	⬆ 25	⬆ 7	⬆ 2				89.3	10.7
107	NUST	14223	⬆ 2			⬆ 1	16.4	74.6	5.9	3.0
108	Spain	13473	⬇ 3	⬇ 2	⬇ 2	⬇ 1			69.9	30.1
109	RobotechResearch	13385	⬆ 18	⬆ 5					47.8	52.2
110	moeses	12579	⬆ 5						99.0	1.0
111	Quantus	12170	⬇ 4	⬆ 1	⬆ 2	⬆ 1	10.0		13.0	25.1		51.9
112	Ozzie Prime	12168	⬇ 10	⬇ 3	⬇ 1	⬆ 1		0.7	39.0	15.4		44.9
113	Nerdfighters for Mersenne Primes	11439	⬇ 10	⬇ 2	⬇ 1	⬇ 2			89.7	10.3
114	SETI.Germany	11194	⬇ 6	⬆ 4				8.5	14.2	77.4
115	FREE ROBUX	10852	⬆ 5	⬆ 4					100.0
116	Team Slovenia	10729	⬇ 2	⬇ 1					65.3	34.6
117	Royal Military College of Canada	10691	⬆ 5	⬆ 3			89.7		7.9	2.4
118	Team Finland	10532	⬇ 7	⬇ 1			1.5		95.9		2.5
119	Portland State University	10264	⬇ 9	⬇ 3				44.2	40.1	15.7
120	University of Waterloo	10222	⬆ 17	⬆ 8	⬆ 1				97.3	2.7
121	Syntony	9256	⬆ 5	⬆ 1	⬇ 1					100.0
122	LTT fans	9056	⬇ 43	⬇ 26	⬆ 2		92.5				7.5
123	Granada	8806	⬇ 2	⬇ 2	⬇ 1		25.8		26.8	46.6
124	Shaffer's Studio	8778	⬆ 1	⬆ 2	⬆ 1				88.9	11.0
125	Die Zeitfinder	8696	⬆ 3	⬆ 2	⬆ 1				91.1	8.9
126	JiBoTeam	8639	⬆ 4	⬇ 2	⬇ 3					100.0
127	math.auth.gr	8551	⬆ 58	⬆ 5	⬆ 1				100.0
128	Pavlicin	8407	⬆ 93	⬆ 10	⬆ 1		79.7	0.1	20.2
129	Mensa	8400	⬇ 16	⬇ 4	⬆ 1				84.3	15.7
130	FreeBSD	8386	⬇ 1	⬆ 4	⬆ 1				75.9	24.1
131	Triangle	7905	⬆ 4		⬆ 1				98.9	1.1
132	Server66	7649	⬇ 8	⬆ 25	⬆ 1	⬆ 1	100.0
133	Prime Rib	7360	⬆ 7	⬆ 2	⬆ 1	⬆ 1			96.7	3.3
134	Abacus	7135		⬆ 2	⬆ 1	⬆ 1			98.9	1.1
135	GIMPS.Taiwan	7047	⬇ 16	⬇ 12	⬇ 8	⬇ 3			81.2	18.1	0.1
136	Team Norway	6786	⬇ 32	⬇ 6			75.1			7.5	17.1
137	FactorMania	6572	⬆ 19	⬆ 2				56.9			43.1
138	irowiki	6116		⬆ 3	⬆ 1					100.0
139	Team Christensen	5977	⬆ 4	⬆ 3	⬆ 1					100.0
140	Arpan Sen Labs	5623	⬆ 33	⬆ 8	⬆ 1				51.8	48.2
141	México mágico	5564	⬆ 13	⬆ 2	⬆ 1				85.4	14.6
142	Elisabeth-von-Thadden-Schule	5505	⬆ 2	⬆ 2	⬆ 1				42.1	57.9
143	Brasil	5283	⬇ 4	⬇ 6	⬇ 5				74.2	25.6
144	Morocco	5160	⬆ 43	⬆ 19	⬆ 1				63.4	36.6
145	KnightLight	5124	⬆ 59	⬆ 2	⬇ 1					100.0
146	nmbarek_team	4946	⬆ 1	⬆ 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		⬆ 4	⬇ 3		6.4			73.8	0.6
150	Korea.Prime	4709	⬆ 10	⬆ 2	⬆ 1				66.8	33.2
151	Hong Kong GIMP	4706	⬇ 3	⬇ 6	⬆ 1				66.8	33.2
152	YESHUA IS THE MESSIAH	4648	⬆ 69	⬆ 7	⬆ 1				99.2	0.8
153	Hyperion	4403	⬇ 21	⬇ 13	⬇ 3					12.9
154	teamMALI	4158	⬇ 8	⬇ 4					75.7	24.3
155	Noam Karni Team	3963	⬆ 2	⬇ 1					79.7	20.3
156	MES22-Team	3277	⬇ 23	⬆ 5	⬆ 2		100.0
157	Politeknik Banting, Selangor	3101	⬇ 39	⬇ 11	⬆ 3	⬆ 1	65.4		25.5	9.1
158	Olympic College	3075	⬇ 6	⬇ 2	⬇ 1	⬆ 1				100.0
159	Team_Brazil	2999	⬆ 4	⬆ 6	⬆ 2	⬆ 1	83.1	0.2		16.7
160	Phi Kappa Theta	2906	⬆ 4	⬇ 5	⬇ 1	⬇ 3			56.2	43.8
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	2501	⬇ 18	⬇ 1			79.4			20.6
164	Pi Rho	2499	⬆ 2	⬆ 4	⬆ 1				67.1	32.9
165	GIMPSMalaysia	2394	⬆ 2	⬆ 4	⬆ 1				66.8	33.2
166	CZAsTc	2288	⬆ 18	⬆ 16	⬆ 1	⬆ 1			99.5	0.4
167	Kabylie	2209	⬇ 9	⬇ 3	⬆ 1	⬆ 1	17.3	1.9	35.1	45.6
168	Team Austria	2199	⬇ 84	⬇ 39	⬆ 1	⬆ 1	12.8	9.5	77.7
169	GIMPS_KS	2199	⬆ 1	⬆ 2	⬆ 1	⬆ 1			36.5	62.0	1.4
170	VRS_SE	2105	⬇ 2		⬆ 1	⬆ 1			74.9	25.1
171	The Prime Pioneers	1919	⬆ 4	⬆ 1	⬆ 1	⬆ 1		100.0
172	The Pensis	1869	⬆ 4	⬆ 1	⬆ 1	⬆ 1				100.0
173	San Francisco	1586	⬆ 6	⬆ 2	⬆ 2	⬆ 1			100.0
174	hreid	1575	⬆ 23	⬆ 2	⬆ 2	⬆ 1			100.0
175	cr_colorado	1549	⬆ 6	⬆ 3	⬆ 2	⬆ 1				100.0
176	Team Splunk	1548	⬇ 40	⬇ 43	⬇ 20	⬇ 10			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	⬆ 41	⬆ 1		100.0
181	Join Us 😈	1060	⬆ 17	⬆ 3	⬆ 1		66.8			33.2
182	youngfun429	1037	⬇ 40	⬇ 1	⬆ 1				75.3	24.7
183	TunisianTeam	1031	⬇ 11	⬆ 3	⬆ 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	RafaÅ‚ HacuÅ›	860	⬆ 35	⬆ 5	⬆ 2	⬆ 1			100.0
187	AWC	801	⬆ 6	⬆ 5	⬆ 2	⬆ 1			100.0
188	F=dp/dt	797	⬇ 11	⬆ 5	⬆ 2	⬆ 1			99.6	0.4
189	GIMPS Asturias	794	⬆ 5	⬆ 5	⬆ 2	⬆ 1			99.6	0.4
190	Weatopians	793	⬆ 5	⬆ 5	⬆ 2	⬆ 1			99.7	0.3
191	TimE4This	626		⬇ 1	⬇ 4	⬇ 5				100.0
192	SGDynamo Dresden	564	⬆ 7	⬆ 5	⬆ 2		100.0
193	PARG team	563	⬆ 25	⬆ 10	⬆ 2					96.2	3.8
194	PrimeObsession	539	⬆ 6	⬆ 4	⬆ 2					100.0
195	GIMPS.Romania	422	⬆ 26	⬆ 5	⬆ 3				100.0
196	GIMPS_IOM	419	⬇ 18	⬇ 9	⬇ 3		100.0
197	His Dark Materials	348	⬇ 9	⬇ 1	⬆ 2						99.8
198	Yurunago	276	⬆ 7	⬆ 6	⬆ 2					100.0
199	Vegan	275	⬆ 22	⬆ 7	⬆ 2					100.0
200	Byberg Nordic Prime	265	⬇ 4	⬆ 7	⬆ 2					100.0
201	FDY	265	⬆ 20	⬆ 7	⬆ 2					100.0
202	Subprime Searches	256	⬇ 28	⬇ 17	⬆ 2					100.0
203	GIMPS Hams	253	⬆ 5	⬆ 7	⬆ 2			100.0
204	WSU Cougars	247	⬇ 43	⬇ 21	⬇ 7					100.0
205	Team Dominik Radler	244	⬇ 3		⬆ 1		100.0
206	miiro	240	⬆ 7	⬆ 5	⬆ 2		100.0
207	Zorin OS Crew	237	⬇ 24	⬇ 8	⬆ 2					100.0
208	DividerHunt	221	⬆ 1	⬆ 4	⬆ 2		100.0
209	Manri Costa Rica	213	⬆ 1	⬆ 4	⬆ 3	⬆ 1				100.0
210	/r/counting	184	⬇ 7	⬆ 4	⬆ 3	⬆ 1
211	alan145	180	⬇ 19	⬇ 10		⬇ 2	100.0
212	GIMPS.Peace	122	⬆ 2	⬆ 3	⬆ 2		44.7	55.3
213	TeamUbuntu	121	⬆ 2	⬆ 3	⬆ 2					100.0
214	sannerud.com	108	⬆ 2	⬆ 3	⬆ 2		43.1				19.4	37.5
215	Team Bulgaria	46	⬇ 3	⬆ 3	⬆ 2						100.0
216	PROMYS	23	⬆ 1	⬆ 3	⬆ 2						100.0
217	SU Prime Pirates	6	⬇ 76	⬇ 59	⬇ 43					100.0
218	yfinder	1	⬆ 2	⬆ 2	⬆ 1					100.0