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 2026-01-12 12:00 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	GIMPS.Russia	996104703	⬆ 1				0.4		0.1		99.5
2	Slovakia	691164649	⬆ 1	⬆ 1	⬆ 1		0.2	97.6			2.2
3	PrimeNet	487183452	⬇ 2	⬇ 1	⬇ 1			98.2	0.2	0.3	1.3
4	POLAND	449193523					0.3	99.1	0.1		0.5
5	-Too many Ones-	248968614					0.3	87.4			12.3
6	Ars Technica Team Prime Rib	34142890	⬆ 1				0.2	94.7	0.1	2.2	2.7
7	unRAID	33967712	⬇ 1					99.5	0.4		0.1
8	GIMPSChina	21818163					82.2	11.2	4.2	0.8	1.6
9	One Man Team	16979703						99.5	0.5
10	More Power!!!	14414938					13.9	55.9	1.8	0.7	27.7
11	GW's legions	12723492					0.1	0.9	29.1	0.6	69.4
12	Team-Deutschland	12226298					4.0	5.4	0.6	0.2	89.6
13	UCM-curtisc	11892435							99.4	0.6
14	TeamUK	7391519	⬆ 2				37.8	6.7	19.1	1.2	35.0	0.2
15	Porta Kruse	5976278	⬆ 20	⬆ 12	⬆ 2			0.1		0.1	93.2	6.6
16	szerverem.hu	5565857	⬆ 225	⬆ 222	⬆ 4		7.6	48.3	29.9	6.7	7.5
17	GPU to 72	5090847	⬇ 2	⬇ 2	⬇ 2		64.6	20.8	0.8	3.5	10.3
18	SpongeBob SquarePants	4445435	⬇ 4	⬇ 2	⬇ 2		4.7	30.7	51.3	11.7	1.6
19	Numberphile	2950648	⬇ 1	⬇ 1	⬇ 1		33.0	40.0	18.6	6.7	1.4
20	Dutch Power Cows	2629276	⬇ 3	⬇ 3	⬇ 1		30.5	37.0	1.2	1.0	30.3
21	tsc	2465150	⬇ 2	⬇ 2			91.4	6.5	1.5	0.2	0.4
22	UKRAINE	2199514	⬇ 2	⬇ 2			37.1	15.4	33.6	13.8
23	Wikipedia	1844742	⬆ 1	⬇ 2			61.4	31.3	4.2	2.4	0.5
24	Swedes Of Primes	1557123	⬇ 2	⬇ 2			0.1	84.1	13.5	2.3
25	GIMPS.USA	1415760	⬇ 2	⬇ 1			5.5	0.2	3.5	2.1	88.6
26	GIMPS.Japan	1341828	⬇ 5	⬇ 3			4.5	0.1	8.0	1.7	85.6
27	GIMPS.Occitania	1278248	⬇ 2	⬇ 2								100.0
28	MOXA	705325	⬇ 2			⬆ 1	98.8		0.9	0.4
29	MATHSareREAL	704645	⬇ 1	⬇ 3		⬇ 1	96.2		2.7	1.1
30	MBAi.Cloud	532932	⬇ 1		⬆ 1				100.0
31	Rechenkraft.net	517306	⬇ 4	⬇ 2	⬇ 1		5.7	61.3	2.8	5.6	23.8	0.8
32	citizenscience.ru	433097	⬇ 1	⬇ 1			82.3	7.3	3.8	0.9	3.1	2.6
33	Terry Kim Team	426713		⬇ 1			98.2		0.9	0.3
34	Buhr	393119	⬆ 3				65.5	1.3	21.4	6.6	5.3
35	GIMPS.Korea	354943	⬆ 49	⬆ 2	⬆ 1		83.6	5.2	9.7	1.3	0.2
36	Smoke-it	320083	⬇ 4	⬇ 3	⬇ 1		91.5	5.9	1.8	0.1
37	S485122	313792	⬇ 3	⬇ 2				95.0		5.0
38	YahsTeam	206242	⬆ 3		⬆ 1		87.8		10.6	1.6
39	NerdyGirls	202140	⬆ 9	⬆ 7	⬆ 3		4.3	36.2	10.2	49.4
40	GIMPS China	201839	⬇ 10	⬇ 4	⬇ 2		96.0		1.2	0.3	2.3
41	Canada	199966	⬆ 1	⬇ 2	⬇ 1			4.6	62.1	32.2
42	Team Tartan	198591	⬆ 2	⬇ 2	⬇ 1				77.5	22.5
43	randomteam	188950	⬆ 4	⬇ 1							100.0
44	GIMPS Team Philippines	180000	⬆ 1	⬆ 1	⬆ 1		86.7		2.3	2.0	8.9
45	BitMEX Research	179405	⬇ 5	⬇ 4	⬇ 1				95.0	5.0
46	nranks	158038		⬇ 2			46.0	0.8	3.9	1.1	48.2
47	OverclockerAustralia	147192	⬆ 3	⬆ 1			59.7		21.2	15.6
48	Team China	124820	⬆ 7	⬆ 3	⬆ 4				99.7	0.3
49	Cap'n Entropy's Cavalcade of Wonderment	123761	⬆ 2		⬇ 1		78.6	4.7	14.5	2.2
50	GIMPS.NZ	122616	⬇ 1				79.0		10.1	10.9
51	Wisconsin	116788	⬆ 2	⬆ 1	⬆ 3		54.8		26.5	18.7
52	SASAKI	116160		⬆ 1	⬆ 1		100.0
53	Team Finland	114865	⬇ 14	⬇ 6	⬇ 2		87.9	0.3	11.5		0.2
54	Georgia Tech	109750	⬇ 16	⬇ 11	⬇ 5		96.9	1.0	2.1
55	EgyptianPolymaths	108544	⬆ 4	⬇ 1			1.3	25.9		0.9	66.9
56	Unicamp	99294	⬆ 24	⬆ 2			73.3	0.3	20.7	5.7
57	UW Eau Claire	95918	⬆ 184	⬆ 24	⬆ 5				76.3	23.7
58	Hungary	95264	⬆ 11	⬇ 2	⬇ 1		0.7	0.1	1.9	2.9	94.1
59	SHADO	84057	⬆ 4	⬆ 1	⬇ 1				64.9	16.2	10.8	2.6
60	404 - "Primes not Found"	83874	⬆ 11	⬆ 10	⬆ 7	⬆ 1	44.9		55.1
61	LTT fans	82233			⬇ 2	⬇ 1	55.2		9.4	2.8	32.6
62	Net-Work	79159	⬇ 2		⬇ 2		0.4	3.2			88.3
63	Esperanto	75370	⬇ 6			⬆ 1		23.3	23.5	53.1	0.2
64	Brno University of Technology	75096	⬇ 2	⬇ 5	⬇ 3	⬇ 1		38.2	52.0	9.8
65	Eratosthenes Sieve	74592	⬇ 1	⬇ 1		⬆ 1	0.7		99.3
66	UIUC	74398	⬇ 1	⬇ 1	⬇ 2	⬇ 1			68.6	31.4
67	GIMPS.France	73453	⬇ 13	⬆ 2	⬇ 1		15.2	31.7	6.4	27.6	18.8
68	GIMPS.NEO	66360	⬇ 1	⬇ 2					75.0	25.0
69	Team Israel	62941	⬇ 1	⬇ 1			96.6		1.3	2.2
70	Colorado School of Mines	60563	⬆ 61	⬆ 33	⬆ 7		75.0		18.1	7.0
71	AMD Users	58620	⬇ 13				79.6		14.8	5.6
72	Team_Italia	57577	⬆ 2	⬆ 1			2.1		74.1	16.9	1.7	4.4
73	ParadoxZ Commando	56456	⬇ 1	⬆ 1	⬇ 3				75.1	24.9
74	AJ	51380	⬆ 1	⬆ 3					76.0	24.0
75	ComputerraRU	49279	⬇ 19	⬇ 8	⬇ 2	⬆ 1	15.9		76.1	7.9
76	Team Belgium	48817	⬇ 10	⬇ 4		⬇ 1	1.6	7.1	38.8	14.8	37.7
77	S147127	48142	⬇ 1	⬇ 1	⬇ 2		19.3		9.8	70.8
78	Team Viet Nam	44328	⬇ 42	⬇ 23			27.5		30.0	31.9	10.5
79	Wile E. Coyote	43269	⬆ 3						81.0	6.1	13.0
80	Team Austria	42756	⬇ 7	⬇ 2	⬆ 1		98.8			1.2
81	MES-Team	42531	⬇ 11	⬇ 6	⬇ 1		71.8	7.6		20.6
82	LimePrime	40162	⬇ 4	⬇ 2				6.5	89.0	4.6
83	socal_prime	35806	⬇ 6		⬆ 1			1.1	66.6	32.0	0.1
84	Team H	35033	⬇ 5	⬇ 2	⬇ 1		9.0	1.7	88.8	0.5
85	Hermessz	32176	⬇ 2	⬇ 1			59.1		40.9
86	HardOCP	30337	⬆ 7		⬆ 2				78.8	21.2
87	huskers-gimps	29486	⬆ 16	⬆ 2	⬆ 3	⬆ 1			76.2	23.8
88	Small-Team-2000	29404	⬆ 2	⬇ 1	⬇ 1	⬇ 1			10.6	89.3
89	Debian	28489	⬆ 8	⬇ 1					98.1	1.9
90	MadPoo	26831	⬇ 47	⬇ 33	⬇ 4			17.5	15.2	67.3
91	Costa Rica	22748							71.4	28.2
92	Team Norway	20992	⬆ 7	⬆ 4	⬆ 2	⬆ 1	84.1			2.4	12.4	1.2
93	Team Retired	20868	⬆ 2	⬆ 2	⬆ 2	⬆ 1			26.5	10.1
94	Portland State University	19876	⬇ 9	⬇ 1	⬇ 1	⬇ 2	20.5	23.8	43.5	12.2
95	Ozzie Prime	19868	⬇ 8	⬆ 3	⬆ 1			4.3	62.5	12.3		21.0
96	Spain	18718	⬇ 10	⬇ 11	⬇ 4	⬆ 1	34.0		41.7	24.3
97	A Single Engineer	18642	⬆ 4	⬆ 2	⬆ 1	⬆ 1			78.4	21.6
98	Quantus	18595	⬇ 4	⬇ 8	⬇ 1	⬇ 2	10.6		29.1	26.3		34.0
99	SpartaAlumni	18571	⬇ 7	⬇ 5					72.2	27.8
100	PrimitiveRootsCircle	18211	⬆ 6				36.2		38.7	22.5	2.6
101	The Fellowship of Infinity	17137	⬆ 37	⬆ 11	⬆ 3				99.5	0.5
102	Team Slovenia	16998	⬇ 14	⬇ 5	⬇ 1	⬆ 1			72.8	27.2
103	Nerdfighters for Mersenne Primes	16248	⬆ 1	⬆ 5	⬆ 2	⬆ 2	2.9		80.8	16.3
104	Channel 4	16009	⬇ 15		⬇ 2	⬇ 2			83.7	16.3
105	GIMPS.Taiwan	15799	⬇ 7	⬇ 4	⬇ 2	⬇ 1			88.4	11.2
106	moeses	15006	⬆ 4	⬆ 1	⬆ 3	⬆ 3			99.4	0.6
107	MurrayInfoSys	14892	⬆ 12	⬆ 9	⬆ 3	⬇ 1			63.2	36.8
108	NanJing Tech	14762	⬆ 133	⬆ 130	⬆ 19	⬆ 4			100.0
109	GIMPS.Portugal	14619	⬇ 2	⬇ 3	⬇ 2	⬇ 2	0.1	71.6		28.3
110	Politeknik Banting, Selangor	14464	⬇ 29	⬇ 18	⬇ 4	⬇ 2	77.9		5.5	16.6
111	ᕙ(⇀‸↼‶)ᕗ	14195	⬆ 35	⬆ 10	⬆ 4				99.5	0.5
112	Granada	14181	⬇ 4	⬇ 3	⬇ 4	⬇ 2	33.6		5.5	60.4
113	Hyperion	13775	⬇ 2	⬇ 3	⬇ 2				1.9	29.8
114	MES22-Team	13207	⬇ 18	⬇ 12	⬇ 1		100.0
115	youngfun429	12798	⬇ 6	⬇ 10	⬇ 3				60.6	39.4
116	SETI.Germany	12752	⬆ 1	⬇ 2	⬇ 2			7.4	24.8	67.7
117	Mensa	11535	⬆ 1	⬆ 2	⬇ 1				67.6	32.4
118	VIPR	11059	⬇ 2	⬇ 3	⬇ 1				70.6	29.4
119	FREE ROBUX	10852	⬆ 122	⬆ 119	⬆ 73				100.0
120	Die Zeitfinder	10777	⬇ 8	⬇ 7	⬇ 2				100.0
121	Royal Military College of Canada	10691	⬆ 120	⬇ 3	⬇ 2		89.7		7.9	2.4
122	Abacus	10326	⬆ 7	⬇ 2	⬇ 1				92.1	7.9
123	FreeBSD	10159	⬇ 18	⬇ 12	⬇ 3		13.8		74.3	12.0
124	nmbarek_team	9947	⬇ 4	⬇ 2	⬇ 2				99.8	0.2
125	Triangle	9572	⬇ 10	⬇ 2	⬆ 3				96.6	3.4
126	JiBoTeam	9405	⬇ 2	⬆ 3	⬇ 2					100.0
127	TurkishMath	9327	⬇ 6	⬇ 3	⬇ 2				91.8	8.2
128	Syntony	9279		⬇ 3	⬇ 5					100.0
129	Shaffer's Studio	8965	⬇ 6	⬇ 3	⬇ 3				86.1	13.8
130	Turku	8647	⬇ 30	⬇ 13	⬆ 2	⬆ 3			100.0
131	Server66	8528	⬇ 6	⬇ 3	⬇ 2	⬇ 1	100.0
132	Furry Primes	8022	⬆ 1	⬇ 2	⬇ 2	⬇ 1	58.8		27.1	14.1
133	Aiblspitz	7837	⬆ 7			⬇ 1	2.1	59.2	20.2	16.4	2.1
134	Team Splunk	7605	⬇ 2	⬇ 2				28.1	71.9
135	irowiki	7567	⬇ 9	⬇ 8	⬇ 4					100.0
136	NUST	7490	⬆ 105	⬆ 35	⬆ 5		13.1	81.3		5.7
137	Brasil	7120	⬇ 7	⬇ 6	⬇ 2				76.5	23.4
138	WSU Cougars	6864	⬆ 1	⬇ 3	⬇ 2				56.6	43.3
139	Prime Rib	6851	⬇ 25	⬇ 3	⬇ 2				97.2	2.8
140	SU Prime Pirates	6437	⬆ 3	⬇ 2	⬇ 2				61.5	38.5
141	University of Waterloo	6259	⬆ 7	⬇ 7	⬇ 2				100.0
142	Team Christensen	6246	⬇ 1	⬇ 1	⬇ 2					100.0
143	Com Systems (RU)	6152	⬆ 49	⬆ 10	⬆ 5				63.2	36.8
144	Elisabeth-von-Thadden-Schule	6033	⬆ 5	⬇ 2	⬇ 2				38.4	61.6
145	teamMALI	5797		⬆ 2	⬇ 2				86.9	13.1
146	GIMPS Romania	5527	⬇ 2	⬇ 1	⬇ 2				100.0
147	International School of Beijing (ISB)	5391	⬇ 13	⬇ 8	⬇ 1				99.6	0.4
148	Optimists Prime	5374	⬇ 1	⬇ 2	⬇ 1			54.9	41.1	4.0
149	The_Dude_Abides	5303	⬇ 22	⬇ 9	⬇ 4	⬆ 1	37.2			53.2
150	zeit	5065	⬇ 14	⬇ 7	⬇ 1	⬇ 1	3.3			96.7
151	3DCenter.org	4903	⬇ 14	⬇ 7	⬇ 1						100.0
152	Black Mesa	4738	⬇ 39	⬇ 15	⬇ 1				86.5	13.5
153	Danpi for GIMPS	4710	⬇ 2	⬇ 5	⬇ 1		100.0
154	Hong Kong GIMP	4669	⬆ 7	⬇ 4	⬇ 1				66.8	33.2
155	ANDY	4448	⬇ 2	⬇ 6	⬇ 1				99.3	0.6
156	The East Coast	4426	⬇ 54	⬇ 5	⬇ 1		99.3	0.7
157	Kabylie	4383	⬇ 1	⬇ 5	⬇ 1		15.0	4.6	35.5	44.8	0.1
158	GIMPS.Hong Kong	4263	⬇ 6	⬇ 2	⬇ 1		3.0		54.5	42.5
159	Olympic College	4166	⬆ 1	⬇ 4	⬇ 1					100.0
160	TunisianTeam	3609	⬇ 6	⬇ 2	⬇ 1				21.4	78.6
161	Phi Kappa Theta	3339	⬆ 6	⬇ 1		⬆ 1			70.6	29.4
162	Zorin OS Crew	3198	⬇ 4	⬇ 1	⬆ 1	⬆ 2			70.1	29.8
163	Team_Brazil	2999	⬆ 6	⬆ 1	⬆ 1	⬆ 2	83.1	0.2		16.7
164	I Love Canadian Natural Resources	2921	⬆ 7	⬇ 5	⬇ 4	⬇ 3				100.0
165	Subprime Searches	2630	⬇ 10	⬆ 3	⬆ 1	⬆ 1	90.3			9.7
166	EggCelentes	2574	⬆ 7		⬆ 1	⬆ 1			42.1	57.9
167	Artists of Fine Art	2527	⬇ 32	⬇ 13	⬇ 5	⬇ 4			90.8	9.2
168	alan145	2444	⬇ 6	⬇ 11	⬇ 3		82.6	1.2		0.3	15.9
169	VRS_SE	2359	⬆ 17		⬇ 1				66.8	33.2
170	Noam Karni Team	2359	⬆ 51	⬆ 19					67.0	33.0
171	Korea.Prime	2330	⬆ 27	⬆ 19	⬆ 1				67.0	32.9
172	Saudi Primes	2268	⬇ 2	⬇ 7	⬇ 3					100.0
173	México mágico	2094	⬆ 45	⬆ 9	⬇ 2				75.3	24.7
174	The Pensis	1869	⬆ 3	⬇ 1	⬆ 1					100.0
175	F=dp/dt	1845	⬆ 3	⬇ 1	⬆ 1				85.8	14.2
176	Obsidian	1821	⬆ 3	⬆ 3	⬆ 1	⬆ 1				100.0
177	His Dark Materials	1818	⬇ 14	⬇ 10	⬇ 3	⬇ 1				47.5	52.5
178	GIMPS_IOM	1712	⬆ 3	⬇ 2			100.0
179	BrainStone	1712	⬇ 11	⬇ 16	⬇ 6					100.0
180	FactorMania	1697	⬆ 61	⬆ 36	⬇ 1			58.6			41.4
181	Crunching@EVGA	1668	⬆ 60	⬆ 15	⬇ 1				100.0
182	RobotechResearch	1594	⬆ 59	⬇ 5	⬇ 1				100.0
183	San Francisco	1586	⬆ 1	⬇ 5	⬇ 1				100.0
184	UCLA Linux Users Group	1536	⬇ 25	⬇ 14	⬇ 1				100.0
185	TimE4This	1481	⬇ 10	⬇ 1	⬇ 1					100.0
186	The Prime Pioneers	1462	⬆ 8	⬆ 9	⬆ 3	⬆ 1	20.7	52.5		17.3	9.2
187	OcUK - Overclockers UK	1409	⬇ 13	⬇ 2	⬇ 2	⬇ 1			100.0
188	Happy	1341	⬇ 8	⬇ 1	⬇ 1						99.9
189	GIMPSMalaysia	1317	⬆ 52	⬆ 2	⬇ 1				60.4	39.5
190	Math_Lovers	1039	⬇ 1	⬇ 2						100.0
191	Manri Costa Rica	984	⬇ 27	⬇ 16					77.7	22.3
192	GIMPS Asturias	794	⬆ 3	⬆ 5	⬆ 1				99.6	0.4
193	Weatopians	793	⬆ 3	⬆ 5	⬆ 1				99.7	0.3
194	Sæve Nordic Prime	792	⬆ 3	⬆ 5	⬆ 1				98.6
195	hreid	776	⬇ 8	⬇ 12	⬆ 2				100.0
196	crazyBerlin	774	⬇ 54	⬇ 16					100.0
197	cr_colorado	774	⬇ 7	⬆ 6	⬆ 2					100.0
198	Team Arizona	771	⬇ 33	⬇ 26	⬆ 2				100.0
199	ISISS Valle Seriana	770	⬇ 11	⬆ 1	⬇ 1				98.4	1.6
200	NuggetFarms	764	⬇ 43	⬇ 19	⬆ 1				100.0
201	Czech National Team	731	⬇ 51	⬇ 39	⬆ 1		5.1			90.9	2.4
202	SGDynamo Dresden	581	⬆ 2	⬆ 2	⬆ 1		100.0
203	Team Bulgaria	579	⬇ 1	⬆ 2	⬆ 1					36.7	63.2
204	GIMPS_KS	554	⬆ 37	⬆ 29	⬆ 2					94.5	5.5
205	TeamEc	552	⬆ 1	⬆ 2	⬆ 2					75.6	24.4
206	PrimeObsession	539	⬆ 35	⬆ 32	⬆ 2					100.0
207	math.auth.gr	518	⬆ 4	⬆ 2	⬆ 2					100.0
208	Join Us 😈	517	⬆ 4	⬆ 2	⬆ 2		100.0
209	Name (t) = A x e^kt	483	⬆ 5	⬆ 3	⬆ 2					100.0
210	London Computation Club	478	⬆ 5	⬆ 3	⬆ 2					100.0
211	Team Dominik Radler	413	⬇ 3	⬇ 3	⬆ 2		100.0
212	Team Ribbs	336	⬇ 2	⬆ 2	⬆ 2					100.0
213	KnightLight	315	⬆ 6	⬆ 2	⬆ 2					99.3
214	Unteranger Primelurche	273	⬇ 9	⬇ 8	⬇ 9					100.0
215	www.Adamek.biz	265	⬆ 5	⬆ 3	⬆ 1					100.0
216	Morocco	265	⬆ 25	⬆ 22	⬆ 18					100.0
217	Therian Primes	262	⬆ 24	⬆ 21	⬆ 17					100.0
218	Math Teachers of the World	259	⬇ 5	⬆ 1	⬇ 1				100.0
219	GIMPS Hams	253	⬆ 3	⬆ 1	⬇ 1			100.0
220	The Goodest Team	253	⬆ 3	⬆ 1	⬇ 1					100.0
221	Lithuania LT	247	⬇ 5	⬆ 1						100.0
222	Prime-UAE	247	⬇ 37	⬇ 11	⬇ 2					100.0
223	DividerHunt	221	⬆ 9	⬆ 2	⬇ 1		100.0
224	yfinder	208	⬆ 1	⬇ 1	⬇ 1					100.0
225	30thousandwon	193	⬇ 26	⬇ 1	⬇ 1					100.0
226	/r/counting	175	⬆ 4	⬆ 1	⬇ 1
227	GIMPS.Peace	122	⬆ 14	⬆ 3	⬇ 1		44.7	55.3
228	TeamUbuntu	121	⬆ 3	⬆ 1	⬇ 1					100.0
229	FourthFloorFourEyes	46	⬇ 29	⬆ 3	⬇ 1		100.0
230	PROMYS	23	⬆ 3	⬆ 4	⬇ 1						100.0
231	ALGERIA	16	⬆ 5	⬆ 5	⬇ 1						100.0
232	sannerud.com	10	⬆ 2	⬆ 3	⬇ 1						100.0
233	CZAsTc	6	⬆ 7	⬆ 4	⬇ 1					97.2
234	Team Ireland	3	⬇ 51	⬇ 32	⬇ 1					98.7