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 2026-05-18 14:01 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	742714643					0.2		0.1		99.7
2	Slovakia	702976809					0.1	98.9	0.1		0.9
3	POLAND	203980807	⬆ 1	⬆ 1			0.5	97.6	0.3	0.1	1.6
4	Ars Technica Team Prime Rib	126802721	⬆ 2	⬆ 2				99.1		0.8
5	PrimeNet	122296766	⬇ 2	⬇ 2			0.2	98.1	0.7	1.0	0.1
6	-Too many Ones-	71467917	⬇ 1	⬇ 1			0.1	78.9			21.0
7	GIMPSChina	21644001	⬆ 1	⬆ 1			66.1	21.1	4.2	0.5	8.0
8	szerverem.hu	14832426	⬆ 7	⬆ 6	⬆ 1		2.9	23.9	67.6	2.5	3.1
9	One Man Team	13934484			⬆ 1			99.5	0.5
10	GW's legions	13542556	⬆ 1		⬆ 1			0.8	35.9	1.5	61.7
11	Team-Deutschland	12012524	⬆ 2		⬆ 1		2.7	49.8	0.7	0.1	46.6
12	UCM-curtisc	11778062			⬆ 1				99.3	0.7
13	More Power!!!	10810773	⬇ 3		⬆ 1		17.2	70.4	2.6	1.9	8.0
14	unRAID	7769162	⬇ 7	⬇ 7	⬇ 6			98.6	1.3	0.1
15	TeamUK	7135280	⬇ 1				48.8	2.9	18.9	1.4	27.8	0.1
16	Porta Kruse	6398529					2.0	0.5			91.3	6.1
17	GPU to 72	4740904					51.3	27.5	0.5	4.0	16.6
18	Numberphile	3751929	⬆ 1				17.3	34.5	16.8	4.7	26.5
19	UW Eau Claire	2990520	⬆ 12	⬆ 2			89.2		7.9	2.9
20	tsc	2687074		⬇ 1			74.5	4.0	1.2	0.4	19.8
21	Argentina	2348058	⬆ 209	⬆ 9			93.4		6.6
22	UKRAINE	2284681	⬇ 1		⬆ 1		17.1	9.3	60.0	13.5
23	SpongeBob SquarePants	2150082	⬇ 5	⬇ 3	⬇ 1			31.4	57.7	10.8
24	Wikipedia	1993456	⬇ 1	⬇ 1			59.0	33.4	4.6	2.1	0.8
25	Swedes Of Primes	1256666	⬇ 1	⬆ 2	⬆ 2	⬆ 2	0.5	79.9	16.8	2.8
26	Dutch Power Cows	1209567	⬇ 4	⬇ 2	⬇ 1		38.0	16.2	1.8	2.1	41.8
27	GIMPS.Occitania	1204732		⬆ 1	⬆ 1	⬆ 1		4.4				95.6
28	GIMPS.Korea	1075063	⬆ 4	⬆ 1	⬆ 1	⬆ 1	88.9	4.9	4.3	0.9	0.8
29	GIMPS.Japan	869935	⬇ 3	⬇ 3	⬇ 3	⬇ 4	10.1		14.2	4.0	71.6
30	MBAi.Cloud	833535		⬆ 1					99.9	0.1
31	MATHSareREAL	578886	⬇ 2	⬆ 1			96.2		2.5	1.3
32	citizenscience.ru	529434	⬆ 3	⬆ 1			88.2	3.3	4.5	0.8	2.9	0.3
33	Buhr	473994	⬆ 3	⬆ 2			54.8	4.3	17.9	5.5	17.5
34	Rechenkraft.net	404535		⬆ 2	⬆ 1	⬆ 1	1.4	55.8	4.9	5.8	32.1
35	MOXA	403960	⬇ 7	⬇ 1	⬇ 1	⬇ 1	99.0		0.8	0.3
36	Terry Kim Team	387968	⬇ 3	⬆ 1			96.1		2.9	0.7
37	Colorado School of Mines	316241	⬆ 13	⬆ 3	⬆ 1		92.8		5.9	1.3
38	S485122	306562	⬇ 1		⬇ 1			95.0		5.0
39	Smoke-it	265620	⬇ 1				90.5	7.1	1.8
40	404 - "Primes not Found"	258777	⬆ 7	⬆ 4	⬆ 1		81.9		17.9	0.2
41	nranks	238260	⬇ 1	⬆ 5	⬇ 1		31.5	0.5	3.0	0.2	64.8
42	GIMPS.USA	231262	⬇ 17	⬇ 17	⬆ 1	⬆ 1	59.1	3.6	27.0	7.7	2.1
43	YahsTeam	230428	⬇ 4	⬇ 2	⬇ 1	⬇ 1	87.8		10.3	2.0
44	GIMPS Team Philippines	202508	⬇ 3	⬇ 1			59.0		7.7	1.7	28.2
45	NerdyGirls	202052	⬇ 3					42.0	7.2	50.7
46	Canada	183779	⬇ 3	⬆ 1	⬆ 1			2.3	69.5	28.2
47	Team Tartan	179528	⬇ 2	⬆ 1	⬆ 1				76.4	23.5
48	NanJing Tech	178908	⬆ 50	⬆ 5	⬆ 1		28.9		67.1	3.9
49	randomteam	157631	⬇ 5	⬇ 7	⬇ 3						100.0
50	OverclockerAustralia	152190	⬇ 1	⬇ 1			57.7		20.0	18.8
51	GIMPS.NZ	132555	⬆ 1	⬇ 1			79.9		10.0	10.0
52	Team China	126126	⬇ 1						99.7	0.3
53	Unicamp	123142	⬆ 1	⬇ 2			70.4		25.0	4.7
54	GIMPS.France	118348	⬆ 5	⬆ 3			9.4	66.0	4.8	8.0	11.7
55	SASAKI	105221	⬇ 2	⬆ 1			100.0
56	GIMPS China	104132	⬇ 10	⬇ 1			90.2		4.9		4.5
57	GIMPS.Portugal	98403	⬆ 52	⬆ 32	⬆ 7	⬆ 2	42.2	52.8		4.9
58	IOTA	97917	⬆ 33	⬆ 8	⬆ 1		94.9		3.4	1.7
59	BitMEX Research	97438	⬇ 11	⬇ 5	⬇ 2	⬇ 2			95.1	4.9
60	Wisconsin	92979	⬇ 3	⬇ 2	⬇ 2		42.4		31.2	26.4
61	AMD Users	90515	⬆ 7	⬆ 1	⬇ 1		51.5	0.7	10.5	36.9	0.4
62	UIUC	87043	⬆ 1	⬇ 1	⬇ 1				68.3	31.7
63	Cap'n Entropy's Cavalcade of Wonderment	82816	⬇ 8	⬇ 4	⬇ 1		72.9	6.5	18.4	2.2
64	Net-Work	77728	⬇ 2		⬆ 1		4.7	1.9			86.4
65	SHADO	76000	⬇ 4	⬇ 2	⬆ 1				61.5	18.3	11.9	2.0
66	EgyptianPolymaths	74948	⬇ 10	⬇ 6	⬇ 3			57.6			32.1
67	Eratosthenes Sieve	73282	⬇ 3	⬇ 2			0.8		95.3	3.9
68	Wile E. Coyote	72412	⬆ 9						75.6	0.5	24.0
69	Esperanto	67822	⬇ 4	⬇ 2				26.0	4.7	69.1	0.2
70	AJ	65291	⬆ 1	⬇ 1					75.2	24.8
71	S147127	61748	⬆ 5	⬆ 3			29.8		17.1	53.1
72	Team Israel	60496	⬇ 6	⬆ 1			96.9		2.6	0.4
73	ParadoxZ Commando	59189		⬇ 1					74.0	26.0
74	Team_Italia	54263		⬇ 3			3.2		65.9	24.4	2.3	3.3
75	Hungary	52634	⬇ 17	⬇ 5					3.1	1.9	94.6
76	ComputerraRU	48955	⬆ 2	⬆ 1			21.0		69.3	9.6
77	Brno University of Technology	48044	⬇ 5	⬇ 1	⬆ 1			9.3	72.0	18.7
78	GIMPS.NEO	47981	⬇ 8	⬇ 3	⬇ 1				77.8	22.2
79	Team Belgium	44345	⬇ 4	⬇ 1			1.2	7.1	30.4	19.4	42.0
80	Team Viet Nam	41552	⬇ 1	⬇ 1			29.4		32.0	27.4	11.2
81	VIPR	37447	⬆ 25	⬆ 6	⬆ 1		79.5		12.7	7.8
82	HardOCP	36707	⬆ 4	⬇ 1	⬇ 1				74.5	25.5
83	Turku	36285	⬆ 9						100.0
84	huskers-gimps	35914	⬆ 3						74.5	25.5
85	Team H	35333	⬇ 3		⬆ 1		13.0		86.5	0.5
86	Debian	33893	⬆ 2	⬇ 4	⬇ 1				99.0	1.0
87	Hermessz	32471	⬇ 3	⬇ 1			63.8		36.2
88	ᕙ(⇀‸↼‶)ᕗ	32332	⬆ 5		⬆ 2		0.7		99.0	0.4
89	Small-Team-2000	31693		⬆ 2					9.9	90.1
90	baraCUDA	28258	⬆ 140	⬆ 132	⬆ 46	⬆ 1			100.0
91	LTT fans	26938	⬇ 22	⬇ 11	⬇ 3	⬇ 1	31.1				68.9
92	Channel 4	25746	⬆ 2	⬆ 1		⬆ 1			80.5	19.5
93	socal_prime	25607	⬇ 8	⬇ 3	⬇ 2	⬇ 1			70.1	29.7	0.1
94	The Fellowship of Infinity	24986	⬆ 2	⬆ 2	⬇ 1				99.5	0.5
95	MES-Team	24251	⬇ 12	⬇ 3	⬇ 1		73.4	6.7		19.9
96	Costa Rica	23837	⬇ 6	⬇ 1	⬇ 1				75.2	24.4
97	MurrayInfoSys	23778	⬆ 5	⬆ 1	⬇ 1				68.5	31.5
98	Georgia Tech	20319	⬇ 38	⬆ 5					100.0
99	Team Retired	19047	⬇ 4						28.8	11.2
100	A Single Engineer	18470	⬇ 1	⬆ 1					75.7	24.3
101	SpartaAlumni	18233	⬇ 1	⬆ 1	⬇ 4				68.6	31.4
102	GIMPS Romania	18140	⬆ 39	⬆ 13			70.9		26.2	2.9
103	PrimitiveRootsCircle	17227	⬇ 6	⬇ 3			19.8		50.5	26.9	2.8
104	Aiblspitz	16844	⬆ 29	⬆ 7	⬆ 1		0.6	78.2	9.4	11.1	0.8
105	LimePrime	15012	⬇ 24	⬇ 8	⬇ 1			9.4	78.4	12.2
106	Portland State University	14441	⬇ 2	⬆ 2	⬆ 3			31.3	55.7	13.0
107	NUST	14223	⬆ 10				16.4	74.6	5.9	3.0
108	Ozzie Prime	14035		⬇ 2	⬇ 2	⬆ 1		3.3	39.3	17.2		40.2
109	Com Systems (RU)	13946	⬆ 23	⬆ 8	⬆ 1	⬆ 1			67.2	32.8
110	Spain	13918		⬇ 6	⬇ 2	⬆ 1			67.3	32.7
111	moeses	13370	⬆ 2	⬆ 5	⬆ 1	⬆ 1			99.1	0.9
112	Team Austria	13234	⬇ 32	⬇ 18	⬇ 11	⬇ 4	85.5	1.6	12.9
113	Team Slovenia	12416	⬇ 2	⬆ 1	⬆ 3				69.0	31.0
114	Nerdfighters for Mersenne Primes	12347	⬇ 7	⬇ 4	⬇ 1				88.8	11.2
115	Quantus	12170	⬇ 14	⬇ 2			10.0		13.0	25.1		51.9
116	Team Finland	12069	⬇ 49	⬇ 7	⬇ 5		1.0		96.8		2.2
117	RobotechResearch	11544	⬆ 41	⬆ 10					48.6	51.4
118	SETI.Germany	11194	⬇ 6	⬇ 13	⬇ 4			8.5	14.2	77.4
119	TurkishMath	11159	⬆ 17	⬆ 7	⬇ 1				86.2	13.8
120	FREE ROBUX	10852	⬆ 1		⬇ 1				100.0
121	Royal Military College of Canada	10691	⬆ 1		⬇ 1		89.7		7.9	2.4
122	Granada	10449	⬇ 4	⬆ 2			27.9		22.6	48.9
123	GIMPS.Taiwan	10152	⬇ 8	⬇ 4					86.9	12.6	0.1
124	Syntony	9601	⬆ 2	⬆ 1						100.0
125	Team Norway	9433	⬇ 20	⬇ 13	⬇ 4		78.0			5.4	16.4
126	Mensa	8910	⬇ 7	⬇ 3	⬇ 1	⬆ 1			88.2	11.8
127	Shaffer's Studio	8858	⬆ 2	⬆ 3	⬇ 1	⬆ 1			87.9	12.0
128	JiBoTeam	8715			⬇ 1	⬇ 2				100.0
129	University of Waterloo	8354	⬆ 9	⬆ 9	⬆ 1				100.0
130	Triangle	7872		⬆ 5	⬇ 2				99.0	1.0
131	Die Zeitfinder	7790	⬇ 7	⬇ 2	⬇ 2				90.0	10.0
132	math.auth.gr	7704	⬆ 56	⬆ 4	⬆ 1				100.0
133	Team Splunk	7605	⬆ 4	⬆ 4	⬆ 1			28.1	71.9
134	FreeBSD	7519	⬇ 7	⬇ 3	⬆ 4				73.6	26.4
135	Abacus	7135	⬇ 15	⬇ 1	⬇ 3				98.8	1.2
136	Brasil	7025	⬆ 7	⬆ 6	⬆ 1				78.2	21.8
137	Hyperion	6912	⬇ 21	⬇ 4	⬇ 2					19.7
138	Politeknik Banting, Selangor	6787	⬇ 24	⬇ 16	⬇ 7		84.2		11.6	4.2
139	Prime Rib	6563		⬆ 1	⬆ 1				96.4	3.6
140	irowiki	6442	⬇ 5	⬆ 1	⬇ 1					100.0
141	MadPoo	6207	⬇ 38	⬇ 23				75.7		24.3
142	FactorMania	6184	⬆ 18	⬆ 11		⬆ 1		57.5			42.5
143	Team Christensen	6095	⬆ 2	⬆ 1		⬇ 1				100.0
144	Elisabeth-von-Thadden-Schule	5505		⬆ 1					42.1	57.9
145	KnightLight	5257	⬆ 66	⬆ 2	⬆ 1					100.0
146	México mágico	5001	⬆ 18	⬆ 10	⬆ 9	⬆ 10			79.2	20.8
147	nmbarek_team	4951		⬆ 3	⬆ 1	⬇ 1			99.8	0.2
148	teamMALI	4933	⬆ 2		⬆ 1	⬇ 1			79.4	20.6
149	Crunching@EVGA	4888	⬆ 12	⬆ 2	⬆ 1	⬇ 1			99.7	0.3
150	Pavlicin	4809	⬆ 80	⬆ 72	⬆ 73	⬆ 4	99.8	0.2
151	Danpi for GIMPS	4710		⬆ 3		⬇ 2	100.0
152	Hong Kong GIMP	4700	⬇ 3	⬆ 3		⬇ 2			66.6	33.4
153	SU Prime Pirates	4689	⬇ 13	⬇ 10	⬇ 8	⬇ 2			84.5	15.5
154	Arpan Sen Labs	4562	⬆ 76	⬆ 11	⬆ 6	⬇ 2			63.9	36.1
155	Korea.Prime	4439	⬆ 17	⬆ 7	⬇ 2	⬇ 2			70.8	29.2
156	The_Dude_Abides	4170	⬇ 10	⬇ 4	⬆ 1	⬇ 1	15.2			70.2
157	Olympic College	4079	⬇ 4		⬆ 1					100.0
158	Noam Karni Team	3962	⬆ 12	⬆ 1	⬆ 1				79.7	20.3
159	Server66	3762	⬇ 28	⬇ 20	⬇ 3		100.0
160	Phi Kappa Theta	3650	⬇ 3		⬆ 2				66.2	33.8
161	GIMPS.Hong Kong	3618	⬆ 1		⬆ 2		1.6		65.8	32.6
162	Furry Primes	3594	⬇ 28	⬇ 13	⬇ 8		85.7			14.3
163	zeit	3542	⬇ 15	⬇ 5	⬇ 2		7.3			92.7
164	YESHUA IS THE MESSIAH	3366	⬆ 66	⬆ 15	⬆ 1				99.3	0.7
165	MES22-Team	3277	⬇ 42	⬇ 33	⬇ 18		100.0
166	Kabylie	3113	⬇ 12	⬇ 3			15.2	2.4	50.0	32.4
167	Team_Brazil	2999	⬇ 2	⬇ 3			83.1	0.2		16.7
168	Pi Rho	2499	⬇ 1						67.1	32.9
169	Morocco	2446	⬆ 21	⬆ 4					34.4	65.6
170	GIMPSMalaysia	2394	⬆ 5	⬇ 1					66.8	33.2
171	youngfun429	2387	⬇ 46	⬇ 25	⬇ 7				32.7	67.3
172	VRS_SE	2364	⬇ 1	⬇ 2	⬇ 1				66.7	33.3
173	GIMPS_KS	2199	⬆ 1	⬇ 1	⬇ 1				36.5	62.0	1.4
174	I Love Canadian Natural Resources	2012	⬇ 8	⬇ 7						100.0
175	The Prime Pioneers	1919	⬇ 6	⬇ 1		⬆ 1		100.0
176	3DCenter.org	1915	⬇ 21	⬇ 10	⬇ 3	⬇ 1					100.0
177	The Pensis	1869		⬇ 2	⬇ 1					100.0
178	DePaul MAT 141	1689	⬆ 52	⬆ 44	⬆ 13				99.9
179	F=dp/dt	1588	⬇ 1	⬆ 1	⬇ 2				99.6	0.4
180	San Francisco	1586	⬆ 3	⬆ 1	⬇ 2				100.0
181	hreid	1575	⬆ 15	⬆ 13	⬇ 2				100.0
182	cr_colorado	1549	⬆ 2		⬇ 2					100.0
183	Obsidian	1542	⬇ 4	⬇ 5	⬇ 2					100.0
184	CZAsTc	1448	⬆ 3	⬆ 1	⬇ 1				99.5	0.4
185	WSU Cougars	1390	⬇ 43	⬇ 14	⬇ 1				55.3	44.6
186	GIMPS_IOM	1310	⬇ 6	⬇ 9	⬇ 1		100.0
187	Subprime Searches	1226	⬇ 11	⬇ 11	⬇ 1		79.1			20.9
188	Join Us 😈	1060	⬆ 13	⬆ 9	⬆ 8		66.8			33.2
189	TunisianTeam	1031	⬇ 30	⬇ 3	⬇ 2				75.0	25.0
190	Therian Primes	1007	⬆ 12	⬇ 3	⬇ 2			14.6		52.4	33.0
191	Czech National Team	903	⬆ 16	⬇ 2	⬇ 2		4.1		91.8	0.8	2.0
192	TimE4This	876	⬇ 7	⬇ 2	⬇ 2					100.0
193	AWC	801	⬇ 1	⬇ 2	⬇ 1				100.0
194	GIMPS Asturias	794	⬇ 1	⬇ 2	⬇ 1				99.6	0.4
195	Weatopians	793	⬇ 1	⬇ 2	⬇ 1				99.7	0.3
196	His Dark Materials	696	⬇ 15	⬇ 8	⬇ 1					31.3	68.6
197	Zorin OS Crew	691	⬇ 34	⬇ 13	⬇ 15					100.0
198	SGDynamo Dresden	580	⬆ 5	⬆ 1			100.0
199	PrimeObsession	539	⬆ 5	⬆ 1						100.0
200	GIMPS.Romania	422	⬆ 30	⬆ 22	⬆ 23				100.0
201	Optimists Prime	422	⬇ 33	⬇ 5	⬇ 4			100.0
202	alan145	390	⬇ 16	⬇ 4	⬇ 2		100.0
203	PARG team	298	⬆ 27	⬆ 16	⬆ 16	⬆ 18				92.8	7.2
204	Team Dominik Radler	290	⬆ 4	⬇ 2	⬇ 3	⬇ 1	100.0
205	Yurunago	276	⬆ 25	⬇ 2	⬇ 3	⬇ 1				100.0
206	Vegan	275	⬆ 24	⬇ 2	⬇ 3	⬇ 1				100.0
207	Byberg Nordic Prime	265	⬇ 12	⬇ 1	⬇ 3	⬇ 1				100.0
208	FDY	265	⬆ 22	⬆ 14	⬇ 3	⬇ 1				100.0
209	www.Adamek.biz	265	⬆ 4	⬇ 2	⬇ 3	⬇ 1				100.0
210	Math Teachers of the World	259	⬆ 4	⬇ 2	⬇ 3	⬇ 1			100.0
211	GIMPS Hams	253	⬆ 5	⬇ 2	⬇ 3	⬇ 1		100.0
212	DividerHunt	221	⬆ 6	⬇ 2	⬇ 3	⬇ 1	100.0
213	Manri Costa Rica	213	⬆ 6	⬇ 2	⬇ 3	⬇ 1				100.0
214	30thousandwon	193	⬆ 8	⬇ 2	⬇ 3	⬇ 1				100.0
215	/r/counting	184	⬇ 6	⬇ 10	⬇ 3	⬇ 1
216	miiro	150	⬆ 10	⬇ 2	⬇ 3	⬇ 1	100.0
217	GIMPS.Peace	122	⬆ 6	⬇ 2	⬇ 2	⬇ 1	44.7	55.3
218	TeamUbuntu	121	⬆ 6	⬇ 2	⬇ 2	⬇ 1				100.0
219	Team Bulgaria	109	⬇ 9	⬇ 6	⬇ 5	⬇ 1					100.0
220	sannerud.com	108	⬆ 9	⬇ 3	⬇ 3	⬇ 1	43.1				19.4	37.5
221	PROMYS	23	⬆ 7	⬇ 3	⬇ 3	⬇ 1					100.0
222	ANDY	6	⬇ 40	⬇ 2	⬇ 2					99.9
223	yfinder	1	⬇ 3	⬇ 2	⬇ 1	⬆ 1				100.0