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 2026-01-24 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	989315959	⬆ 1				0.4		0.1		99.5
2	Slovakia	691491140	⬆ 1	⬆ 1			0.2	97.6			2.2
3	PrimeNet	469939918	⬇ 2	⬇ 1				98.1	0.2	0.3	1.4
4	POLAND	449202505					0.3	99.1	0.1		0.5
5	-Too many Ones-	210041176					0.3	93.3			6.4
6	unRAID	33811199	⬆ 1	⬆ 1	⬆ 1			99.5	0.4		0.1
7	Ars Technica Team Prime Rib	33541636	⬇ 1	⬇ 1	⬇ 1		0.1	94.6	0.1	2.3	2.7
8	GIMPSChina	21874195					81.3	12.1	4.1	0.8	1.6
9	One Man Team	16978916						99.5	0.5
10	More Power!!!	14455952					13.8	56.1	1.8	0.7	27.6
11	GW's legions	12738817					0.1	0.9	29.4	0.7	68.9
12	UCM-curtisc	11964654	⬆ 1	⬆ 1	⬆ 1	⬆ 1			99.4	0.6
13	Team-Deutschland	11952742	⬇ 1	⬇ 1	⬇ 1	⬇ 1	4.1	5.7	0.5	0.1	89.4	0.1
14	TeamUK	7410115					38.4	6.4	18.9	1.2	34.8	0.1
15	szerverem.hu	6638450	⬆ 224	⬆ 219	⬆ 1		6.4	40.5	40.6	5.6	6.8
16	Porta Kruse	6317338	⬆ 19	⬆ 5	⬇ 1			0.1		0.1	93.5	6.2
17	GPU to 72	5003560	⬇ 1	⬇ 2			62.8	21.8	0.7	3.6	11.0
18	SpongeBob SquarePants	4168717	⬇ 3	⬇ 2			2.8	31.2	53.8	10.8	1.5
19	Numberphile	2914789	⬇ 1	⬇ 2			31.9	40.5	19.4	6.6	1.3
20	Dutch Power Cows	2390182	⬇ 3	⬇ 2			31.8	32.6	1.1	1.1	33.3
21	tsc	2335314	⬇ 2	⬇ 2			91.2	6.4	1.6	0.2	0.4
22	UKRAINE	2172512	⬇ 2	⬇ 2			35.9	15.1	35.2	13.6
23	Wikipedia	1943119	⬆ 1	⬇ 1			58.7	34.0	4.0	2.3	0.7
24	Swedes Of Primes	1550809	⬇ 2	⬇ 1			0.2	83.0	14.4	2.3
25	GIMPS.USA	1410790	⬇ 2	⬇ 1			5.3	0.2	3.6	2.0	88.8
26	GIMPS.Japan	1343281	⬇ 5	⬇ 1			4.5	0.1	8.0	1.8	85.5
27	GIMPS.Occitania	1292987	⬇ 2	⬇ 1				0.5				99.5
28	MOXA	705600	⬇ 2				98.8		0.9	0.3
29	MATHSareREAL	646401	⬇ 1	⬇ 2			95.6		3.3	1.2
30	MBAi.Cloud	561028	⬇ 1						100.0
31	Rechenkraft.net	500118	⬇ 4	⬇ 2			4.4	61.3	2.8	5.8	24.9	0.8
32	Terry Kim Team	438971	⬆ 1		⬆ 1		98.2		0.9	0.3
33	citizenscience.ru	435476	⬇ 3	⬇ 2	⬇ 1		82.6	7.3	3.4	0.8	3.3	2.6
34	GIMPS.Korea	420964	⬆ 50	⬆ 2	⬆ 1		85.8	4.4	8.6	1.0	0.2
35	Buhr	403954	⬆ 1	⬇ 2	⬇ 1		63.8	1.8	21.2	6.4	6.8
36	Smoke-it	313284	⬇ 5	⬇ 2			91.3	6.0	1.8	0.1
37	S485122	312757	⬇ 3	⬇ 2				95.1		4.9
38	YahsTeam	210607	⬆ 2		⬆ 1		87.8		10.4	1.8
39	NerdyGirls	206774	⬆ 9	⬆ 4	⬇ 1		3.7	41.3	8.8	46.1
40	Canada	199547	⬆ 1	⬇ 1	⬆ 1	⬆ 1		3.9	63.0	31.9
41	GIMPS China	197452	⬇ 9	⬇ 4	⬇ 1	⬇ 1	95.9		1.2	0.3	2.4
42	Team Tartan	196894		⬇ 2					77.0	23.0
43	GIMPS Team Philippines	192288	⬆ 1	⬆ 2	⬆ 1		84.1		2.1	1.8	11.6
44	randomteam	188950	⬆ 3	⬇ 2	⬇ 1						100.0
45	BitMEX Research	171753	⬇ 6	⬇ 4					94.8	5.2
46	nranks	157434		⬇ 2			45.4	0.8	4.4	1.1	48.3
47	OverclockerAustralia	147192	⬆ 2				59.7		21.2	15.6
48	Team China	124864	⬆ 6	⬆ 5					99.7	0.3
49	GIMPS.NZ	121386	⬆ 1	⬆ 1			79.0		10.2	10.8
50	Cap'n Entropy's Cavalcade of Wonderment	119414	⬆ 1	⬇ 1			77.9	4.8	15.0	2.3
51	SASAKI	115667	⬆ 1	⬆ 1	⬆ 1		100.0
52	Wisconsin	114370	⬆ 1	⬇ 1	⬇ 1		54.1		25.8	20.1
53	UW Eau Claire	112849	⬆ 186	⬆ 14	⬆ 3				76.7	23.3
54	EgyptianPolymaths	112586	⬆ 2		⬇ 1		1.3	28.5		0.9	64.5
55	404 - "Primes not Found"	107891	⬆ 16	⬆ 13	⬆ 3		57.2		42.8
56	Georgia Tech	103956	⬇ 19	⬇ 10	⬇ 2		96.9	0.8	2.2
57	Unicamp	101837	⬆ 19	⬇ 2	⬇ 2		73.2	0.3	20.9	5.6
58	Hungary	95218	⬇ 1	⬇ 2	⬇ 1		0.6	0.1	1.9	2.9	94.1
59	Colorado School of Mines	86638	⬆ 74	⬆ 26	⬆ 8		81.6		13.5	4.9
60	Team Finland	80335	⬇ 22	⬇ 12	⬇ 1		82.7	0.4	16.5		0.3
61	GIMPS.France	79608	⬆ 7	⬆ 3	⬆ 2		14.0	38.0	5.9	24.4	17.4
62	Net-Work	78085		⬇ 2	⬇ 1		1.1	3.3			87.5
63	SHADO	77563		⬇ 6	⬇ 1				61.1	18.0	12.0	2.8
64	LTT fans	76059	⬇ 4	⬇ 5	⬇ 4		52.9		9.1	2.7	35.2
65	Esperanto	74783	⬇ 7	⬇ 4	⬇ 1			23.3	22.0	54.6	0.2
66	Eratosthenes Sieve	74759	⬇ 2	⬇ 4	⬇ 1		0.7		99.3
67	UIUC	74468	⬇ 2	⬇ 4	⬇ 1				68.5	31.5
68	Brno University of Technology	67967	⬇ 9	⬇ 10				33.9	55.2	10.8
69	GIMPS.NEO	62898	⬇ 3	⬇ 4					73.8	26.2
70	Team Israel	62609	⬇ 3	⬇ 4			97.1		1.3	1.6
71	AMD Users	58620	⬇ 10		⬆ 1	⬆ 1	79.6		14.8	5.6
72	ParadoxZ Commando	58136		⬇ 3	⬇ 1	⬇ 1			74.3	25.7
73	Team_Italia	57675	⬆ 1	⬇ 3			2.3		72.7	17.7	2.2	4.4
74	AJ	54534	⬆ 1	⬆ 2					76.0	24.0
75	Team Belgium	49466	⬇ 6	⬇ 1			1.6	7.1	39.9	15.2	36.2
76	ComputerraRU	48537	⬇ 21	⬇ 4			16.2		75.8	8.0
77	S147127	48212					21.2		8.2	70.5
78	Wile E. Coyote	46001	⬆ 5	⬆ 2					80.4	5.7	13.9
79	Team Viet Nam	44328	⬇ 34				27.5		30.0	31.9	10.5
80	Team Austria	42618	⬇ 7	⬇ 2			98.8			1.2
81	MES-Team	41770	⬇ 11	⬇ 6			72.6	7.5		19.9
82	LimePrime	37828	⬇ 3	⬇ 1				6.9	88.3	4.8
83	socal_prime	36415	⬇ 5		⬆ 1			0.8	67.7	31.2	0.1
84	Team H	35087	⬇ 4	⬇ 2	⬇ 1		9.3	1.5	88.7	0.5
85	Hermessz	33480	⬇ 3	⬇ 1			58.4		41.6
86	HardOCP	31362	⬆ 7		⬆ 1				78.7	21.3
87	Debian	30067	⬆ 8		⬆ 2	⬆ 1			98.2	1.8
88	huskers-gimps	29716	⬆ 12	⬆ 1	⬇ 2	⬇ 1			75.5	24.5
89	Small-Team-2000	29207	⬇ 1	⬇ 1	⬇ 1				10.7	89.3
90	MadPoo	24086	⬇ 47	⬇ 17				19.5	17.0	63.5
91	Costa Rica	23617	⬇ 1	⬇ 1					72.2	27.4
92	Team Norway	21303	⬆ 4	⬆ 2			82.8			3.6	12.4	1.2
93	Team Retired	20811	⬆ 1						26.3	10.1
94	ᕙ(⇀‸↼‶)ᕗ	19952	⬆ 50	⬆ 22	⬆ 16		0.2		99.5	0.4
95	Portland State University	19881	⬇ 9	⬇ 4	⬇ 1		20.4	23.9	43.5	12.2
96	Channel 4	19496	⬆ 19	⬆ 7	⬆ 10	⬆ 5			85.2	14.8
97	PrimitiveRootsCircle	18998	⬆ 8	⬆ 4	⬇ 2	⬇ 1	34.7		41.3	21.6	2.5
98	A Single Engineer	18904	⬇ 1	⬆ 1	⬇ 1	⬇ 1			77.4	22.6
99	NanJing Tech	18715	⬆ 140	⬆ 81	⬆ 2	⬇ 1			100.0
100	The Fellowship of Infinity	18696	⬆ 31	⬆ 6	⬇ 1	⬇ 1			99.5	0.5
101	Quantus	17892	⬇ 9	⬇ 6	⬇ 3	⬇ 1	8.3		30.3	26.1		35.3
102	SpartaAlumni	17865	⬇ 11	⬇ 6	⬇ 2				71.1	28.9
103	Ozzie Prime	17740	⬇ 14	⬇ 5	⬇ 7			4.8	60.6	12.1		22.5
104	Team Slovenia	16326	⬇ 17	⬇ 7	⬇ 1				75.8	24.2
105	Nerdfighters for Mersenne Primes	16249	⬇ 2	⬇ 1	⬇ 1		2.9		80.8	16.3
106	GIMPS.Taiwan	15799	⬇ 7	⬇ 4	⬇ 1				88.4	11.2
107	Spain	14848	⬇ 22	⬇ 15	⬇ 5	⬆ 1	8.2		57.8	34.0
108	MurrayInfoSys	14821	⬆ 11	⬆ 4	⬇ 1	⬇ 1			63.5	36.5
109	GIMPS.Portugal	14583	⬇ 1	⬇ 1	⬇ 1		0.1	71.7		28.1
110	moeses	13976	⬇ 3	⬆ 1	⬆ 1	⬆ 1			99.3	0.7
111	Politeknik Banting, Selangor	13928	⬇ 30	⬇ 11	⬇ 2	⬇ 1	77.1		5.7	17.2
112	Granada	13539	⬇ 3	⬇ 3			34.1		5.7	59.7
113	Hyperion	13426	⬇ 1	⬇ 3					1.9	28.7
114	MES22-Team	13207	⬇ 16	⬇ 9			100.0
115	Turku	13082	⬇ 13	⬆ 13	⬆ 11	⬆ 3			100.0
116	SETI.Germany	12752	⬇ 6	⬇ 3		⬇ 1		7.4	24.8	67.7
117	VIPR	12416	⬇ 1	⬆ 2	⬆ 1		2.2		69.6	28.2
118	youngfun429	12356	⬇ 14	⬇ 11	⬇ 3	⬇ 2			62.7	37.3
119	Mensa	11614	⬇ 1	⬇ 2	⬇ 2				74.0	26.0
120	Abacus	11113	⬆ 9		⬆ 2				92.7	7.3
121	FREE ROBUX	10852	⬆ 118	⬆ 113	⬇ 2				100.0
122	Die Zeitfinder	10777	⬇ 11	⬇ 8	⬇ 2				100.0
123	Royal Military College of Canada	10691	⬆ 116	⬇ 5	⬇ 2		89.7		7.9	2.4
124	FreeBSD	10119	⬇ 18	⬇ 9			5.8		82.4	11.8
125	nmbarek_team	9947	⬇ 5	⬇ 4	⬇ 2				99.8	0.2
126	Shaffer's Studio	9713	⬇ 3	⬇ 1	⬆ 4				87.5	12.4
127	JiBoTeam	9662	⬆ 3	⬇ 1	⬆ 1					100.0
128	NUST	9611	⬆ 111	⬆ 28	⬆ 4		11.9	83.6		4.4
129	Syntony	9321	⬇ 4	⬇ 5	⬇ 2					100.0
130	Triangle	8815	⬇ 13	⬇ 8	⬇ 5				96.2	3.8
131	TurkishMath	8560	⬇ 10	⬇ 8	⬇ 2				91.1	8.9
132	Server66	8528	⬇ 8	⬇ 5	⬇ 1		100.0
133	Furry Primes	8022	⬇ 1	⬇ 3			58.8		27.1	14.1
134	Aiblspitz	8002	⬆ 4	⬇ 3			2.1	60.0	19.7	16.1	2.1
135	irowiki	7788	⬇ 9	⬇ 6						100.0
136	Team Splunk	7605	⬇ 2	⬇ 4				28.1	71.9
137	Com Systems (RU)	7185	⬆ 41	⬆ 9	⬆ 5				64.9	35.1
138	Brasil	7159	⬇ 11	⬇ 5	⬇ 1				76.1	23.8
139	WSU Cougars	6864		⬇ 4	⬇ 1				56.6	43.3
140	Prime Rib	6853	⬇ 26	⬇ 4	⬇ 1				97.2	2.8
141	SU Prime Pirates	6437	⬆ 2	⬇ 4	⬇ 1				61.5	38.5
142	Elisabeth-von-Thadden-Schule	6275	⬆ 6	⬇ 1	⬆ 1				36.9	63.1
143	University of Waterloo	6259	⬆ 4	⬇ 9	⬇ 2				100.0
144	Team Christensen	5782	⬇ 3	⬇ 4						100.0
145	GIMPS Romania	5527		⬇ 1					100.0
146	Optimists Prime	5374		⬇ 1	⬆ 1			54.9	41.1	4.0
147	The_Dude_Abides	5097	⬇ 19	⬇ 5	⬆ 1		38.7			51.1
148	teamMALI	4900	⬆ 1	⬇ 5	⬆ 2	⬆ 1			79.4	20.6
149	zeit	4852	⬇ 12	⬇ 1		⬇ 1	3.5			96.5
150	Danpi for GIMPS	4710		⬇ 1	⬆ 2		100.0
151	Hong Kong GIMP	4655	⬆ 8	⬆ 1	⬆ 4				67.0	33.0
152	International School of Beijing (ISB)	4623	⬇ 17	⬇ 14	⬇ 6	⬆ 1			99.6	0.4
153	3DCenter.org	4604	⬇ 13	⬇ 6	⬇ 2	⬇ 1					100.0
154	ANDY	4448	⬇ 1	⬇ 4	⬇ 1				99.3	0.6
155	The East Coast	4426	⬇ 54	⬇ 4	⬇ 1		99.3	0.7
156	Kabylie	4383	⬇ 1	⬇ 3			15.0	4.6	35.5	44.8	0.1
157	Olympic College	4166		⬇ 3	⬆ 1					100.0
158	Black Mesa	3758	⬇ 45	⬇ 19	⬆ 1				88.8	11.2
159	Phi Kappa Theta	3599	⬆ 8		⬆ 1				65.5	34.4
160	GIMPS.Hong Kong	3484	⬇ 8	⬇ 5	⬇ 3		3.6		44.3	52.1
161	TunisianTeam	3415	⬇ 7	⬇ 4					22.7	77.3
162	Zorin OS Crew	3194	⬇ 4						70.2	29.8
163	Team_Brazil	2999	⬆ 6				83.1	0.2		16.7
164	I Love Canadian Natural Resources	2921	⬆ 7	⬇ 6						100.0
165	México mágico	2887	⬆ 48	⬆ 26	⬆ 9				82.0	18.0
166	FactorMania	2761	⬆ 67	⬆ 19	⬆ 9			66.5			33.5
167	Subprime Searches	2630	⬇ 5	⬇ 1	⬇ 2		90.3			9.7
168	EggCelentes	2574	⬆ 4	⬇ 3	⬇ 2				42.1	57.9
169	Artists of Fine Art	2523	⬇ 33	⬇ 9	⬇ 2				91.0	9.0
170	Noam Karni Team	2364	⬆ 22	⬆ 20	⬇ 2				66.9	33.1
171	VRS_SE	2359	⬆ 14	⬇ 4	⬇ 2				66.8	33.2
172	The Prime Pioneers	2351	⬆ 22	⬆ 21	⬆ 10	⬆ 1	10.6	72.7		10.8	5.7
173	Korea.Prime	2330	⬆ 26		⬇ 3	⬇ 1			67.0	32.9
174	Saudi Primes	2268	⬇ 4	⬇ 10	⬇ 3					100.0
175	GIMPSMalaysia	2120	⬆ 44	⬆ 17	⬇ 2				75.4	24.5
176	alan145	1971	⬇ 16	⬇ 15	⬇ 4		78.4	1.5		0.4	19.7
177	GIMPS_KS	1906	⬆ 62	⬆ 28	⬆ 14				42.2	56.2	1.6
178	The Pensis	1869	⬇ 3	⬇ 4	⬇ 2					100.0
179	F=dp/dt	1845	⬇ 3	⬇ 4	⬇ 2				85.8	14.2
180	Obsidian	1821	⬇ 1	⬆ 1	⬇ 2					100.0
181	GIMPS_IOM	1712		⬇ 5	⬇ 1		100.0
182	BrainStone	1712	⬇ 14	⬇ 10	⬇ 1					100.0
183	His Dark Materials	1711	⬇ 22	⬇ 13	⬇ 4					50.4	49.5
184	Crunching@EVGA	1669	⬆ 55	⬇ 7	⬇ 1				100.0
185	RobotechResearch	1594	⬆ 54	⬇ 7	⬇ 1				100.0
186	San Francisco	1586	⬇ 2	⬇ 7	⬇ 1				100.0
187	cr_colorado	1549	⬆ 3	⬆ 14	⬇ 1					100.0
188	UCLA Linux Users Group	1536	⬇ 32	⬇ 19	⬇ 1				100.0
189	TimE4This	1481	⬇ 9	⬇ 5	⬇ 1					100.0
190	CZAsTc	1447	⬆ 48	⬆ 43	⬆ 43				99.6	0.4
191	OcUK - Overclockers UK	1409	⬇ 18	⬇ 5	⬇ 2				100.0
192	math.auth.gr	1354	⬆ 16	⬆ 16	⬆ 15				61.8	38.2
193	Happy	1341	⬇ 5	⬇ 5	⬇ 3						99.9
194	Manri Costa Rica	984	⬇ 31		⬇ 2				77.7	22.3
195	GIMPS Asturias	794		⬆ 1	⬇ 2				99.6	0.4
196	Weatopians	793		⬆ 1	⬇ 2				99.7	0.3
197	Sæve Nordic Prime	792		⬆ 1	⬇ 2				98.6
198	Math_Lovers	782	⬇ 9	⬇ 9	⬇ 2					100.0
199	hreid	776	⬇ 12	⬇ 16	⬇ 2				100.0
200	crazyBerlin	774	⬇ 58	⬇ 1	⬇ 2				100.0
201	NuggetFarms	764	⬇ 37	⬇ 19	⬇ 1				100.0
202	ISISS Valle Seriana	764	⬇ 4	⬇ 2	⬇ 3				99.2	0.8
203	Czech National Team	731	⬇ 52	⬇ 35	⬇ 2		5.1			90.9	2.4
204	Join Us 😈	708	⬆ 5	⬆ 5	⬆ 4		100.0
205	Team Bulgaria	588	⬇ 4	⬇ 2	⬇ 2	⬆ 1				36.2	63.8
206	SGDynamo Dresden	581	⬇ 4	⬇ 4	⬇ 4	⬇ 1	100.0
207	Pi Rho	540	⬆ 32	⬆ 27	⬆ 7	⬆ 1				100.0
208	PrimeObsession	539	⬆ 31	⬆ 26	⬇ 3	⬇ 1				100.0
209	Morocco	531	⬆ 30	⬆ 25	⬇ 3					100.0
210	London Computation Club	478	⬆ 2	⬆ 2	⬇ 1					100.0
211	Team Dominik Radler	413	⬇ 5	⬇ 4	⬇ 1		100.0
212	IOTA	382	⬆ 27	⬆ 22	⬆ 23	⬆ 21	100.0
213	/r/counting	337	⬆ 18	⬆ 12	⬆ 9	⬇ 1
214	KnightLight	315	⬆ 4		⬇ 2	⬇ 1				99.3
215	Unteranger Primelurche	272	⬇ 12	⬇ 11	⬇ 2	⬇ 1				100.0
216	www.Adamek.biz	265	⬆ 4	⬆ 1	⬇ 1	⬇ 1				100.0
217	Therian Primes	262	⬆ 22	⬆ 17	⬇ 1	⬇ 1				100.0
218	Math Teachers of the World	259	⬇ 8		⬇ 1	⬇ 1			100.0
219	GIMPS Hams	253	⬆ 2		⬇ 1	⬇ 1		100.0
220	The Goodest Team	253	⬆ 2		⬇ 1	⬇ 1				100.0
221	Lithuania LT	247	⬆ 2		⬇ 1	⬇ 1				100.0
222	Prime-UAE	246	⬇ 36	⬇ 12	⬇ 1	⬇ 1				100.0
223	DividerHunt	221	⬆ 4	⬆ 1		⬇ 1	100.0
224	yfinder	208	⬆ 1	⬇ 2		⬇ 1				100.0
225	Name (t) = A x e^kt	207	⬇ 14	⬇ 14		⬇ 1				100.0
226	30thousandwon	193	⬇ 26	⬇ 3		⬇ 1				100.0
227	GIMPS.Peace	122	⬆ 12	⬆ 1		⬇ 1	44.7	55.3
228	TeamUbuntu	121	⬆ 4	⬇ 1		⬇ 1				100.0
229	TeamEc	121	⬇ 25	⬇ 23	⬇ 25	⬇ 1					100.0
230	FourthFloorFourEyes	46	⬇ 13	⬇ 1	⬇ 1	⬇ 1	100.0
231	PROMYS	23	⬆ 3	⬇ 1	⬇ 1	⬇ 1					100.0
232	sannerud.com	10	⬆ 3	⬇ 1							100.0
233	ALGERIA	9	⬆ 4	⬇ 1	⬇ 2	⬇ 2					100.0