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 2026-01-11 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	996105728	⬆ 1				0.4		0.1		99.5
2	Slovakia	691131014	⬆ 1	⬆ 1	⬆ 1		0.2	97.6			2.2
3	PrimeNet	487180468	⬇ 2	⬇ 1	⬇ 1			98.2	0.2	0.3	1.3
4	POLAND	449194434					0.3	99.1	0.1		0.5
5	-Too many Ones-	248516622					0.3	87.4			12.3
6	Ars Technica Team Prime Rib	34160627	⬆ 1				0.2	94.6	0.1	2.2	2.7
7	unRAID	33982804	⬇ 1					99.5	0.4		0.1
8	GIMPSChina	21813105					82.3	11.1	4.2	0.8	1.6
9	One Man Team	16980562						99.5	0.5
10	More Power!!!	14408887					13.9	55.9	1.8	0.7	27.7
11	GW's legions	12718960					0.1	0.9	29.1	0.6	69.4
12	Team-Deutschland	12240457					4.0	5.4	0.6	0.2	89.7
13	UCM-curtisc	11907481							99.4	0.6
14	TeamUK	7387178	⬆ 2				37.7	6.7	19.1	1.2	35.0	0.2
15	Porta Kruse	5732086	⬆ 20	⬆ 13	⬆ 2			0.1		0.1	92.9	6.9
16	szerverem.hu	5421252	⬆ 225	⬆ 222	⬆ 6	⬆ 1	7.8	49.4	30.3	6.6	5.9
17	GPU to 72	5103082	⬇ 2	⬇ 2	⬇ 2	⬇ 1	64.8	20.6	0.8	3.5	10.2
18	SpongeBob SquarePants	4460033	⬇ 4	⬇ 2	⬇ 2		4.9	30.6	51.2	11.7	1.6
19	Numberphile	2951702	⬇ 1	⬇ 1	⬇ 1		33.0	40.0	18.6	6.7	1.4
20	Dutch Power Cows	2655875	⬇ 3	⬇ 3	⬇ 1		30.3	37.5	1.2	1.0	30.0
21	tsc	2464853	⬇ 2	⬇ 2	⬇ 1		91.4	6.5	1.5	0.2	0.4
22	UKRAINE	2201887	⬇ 2	⬇ 2	⬇ 1		37.2	15.4	33.4	13.8
23	Wikipedia	1836334	⬆ 1	⬇ 2			61.7	31.0	4.2	2.4	0.5
24	Swedes Of Primes	1560031	⬇ 2	⬇ 2			0.1	84.1	13.5	2.3
25	GIMPS.USA	1416112	⬇ 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	1276739	⬇ 2	⬇ 2								100.0
28	MATHSareREAL	708096		⬇ 2	⬆ 1		96.3		2.7	1.1
29	MOXA	704858	⬇ 3	⬇ 2	⬇ 1		98.8		0.9	0.4
30	MBAi.Cloud	529174	⬇ 1		⬆ 1				100.0
31	Rechenkraft.net	519946	⬇ 4	⬇ 2	⬇ 1		5.9	61.3	2.8	5.6	23.6	0.8
32	citizenscience.ru	432808		⬇ 1			82.3	7.3	3.8	0.9	3.1	2.6
33	Terry Kim Team	427401		⬇ 1			98.2		0.9	0.3
34	Buhr	393443	⬆ 3				65.6	1.2	21.4	6.6	5.2
35	GIMPS.Korea	349675	⬆ 49	⬆ 3	⬆ 2		83.4	5.3	9.9	1.2	0.2
36	Smoke-it	320474	⬇ 5	⬇ 3	⬇ 1		91.5	5.9	1.8	0.1
37	S485122	313834	⬇ 3	⬇ 2	⬇ 1			95.0		5.0
38	YahsTeam	205986	⬆ 4	⬇ 1	⬆ 1	⬆ 1	87.8		10.6	1.6
39	NerdyGirls	203157	⬆ 9	⬆ 7	⬆ 3	⬆ 1	4.3	36.0	10.5	49.2
40	GIMPS China	201839	⬇ 10	⬇ 4	⬇ 2	⬇ 2	96.0		1.2	0.3	2.3
41	Canada	200886		⬇ 2	⬇ 1			4.7	61.8	32.4
42	Team Tartan	200066	⬆ 2	⬇ 2	⬇ 1				77.7	22.3
43	randomteam	188950	⬆ 4	⬇ 1							100.0
44	GIMPS Team Philippines	180648	⬆ 1		⬆ 1	⬆ 1	87.0		2.3	1.9	8.7
45	BitMEX Research	179405	⬇ 5	⬇ 4	⬇ 1	⬇ 1			95.0	5.0
46	nranks	157912		⬇ 1			45.9	0.9	3.9	1.1	48.2
47	OverclockerAustralia	147192	⬆ 3	⬆ 1			59.7		21.2	15.6
48	Team China	124820	⬆ 7	⬆ 4	⬆ 4	⬆ 1			99.7	0.3
49	Cap'n Entropy's Cavalcade of Wonderment	124099	⬆ 2		⬇ 1	⬇ 1	78.7	4.7	14.5	2.2
50	GIMPS.NZ	122919	⬇ 1				79.1		10.1	10.9
51	Wisconsin	117019	⬆ 2		⬆ 3		54.9		26.4	18.7
52	SASAKI	116225		⬆ 1	⬆ 1		100.0
53	Team Finland	114865	⬇ 14	⬇ 6	⬇ 2		87.9	0.3	11.5		0.2
54	Georgia Tech	112198	⬇ 16	⬇ 11	⬇ 5		96.8	1.2	2.1
55	EgyptianPolymaths	108544	⬆ 4	⬇ 1			1.3	25.9		0.9	66.9
56	Unicamp	98495	⬆ 24	⬆ 2			73.9	0.3	20.0	5.7
57	UW Eau Claire	95917	⬆ 184	⬆ 24	⬆ 5	⬆ 1			76.3	23.7
58	Hungary	95264	⬆ 11	⬇ 2	⬇ 1	⬇ 1	0.7	0.1	1.9	2.9	94.1
59	SHADO	84062	⬆ 4	⬆ 1	⬇ 1				64.9	16.2	10.8	2.6
60	LTT fans	82233	⬆ 1	⬆ 1	⬇ 1		55.2		9.4	2.8	32.6
61	404 - "Primes not Found"	81639	⬆ 10	⬆ 9	⬆ 7	⬆ 1	43.4		56.6
62	Net-Work	79147	⬇ 2		⬇ 2	⬇ 1	0.4	3.2			88.4
63	Brno University of Technology	75586	⬇ 1	⬇ 4	⬇ 2			38.6	51.7	9.7
64	Esperanto	75370	⬇ 7	⬇ 1	⬇ 1			23.3	23.5	53.1	0.2
65	UIUC	75158	⬆ 1		⬇ 1	⬆ 1			68.9	31.1
66	Eratosthenes Sieve	74592	⬇ 2	⬇ 2	⬇ 1	⬇ 1	0.7		99.3
67	GIMPS.France	73050	⬇ 13	⬆ 2	⬇ 1		15.3	31.3	6.5	27.7	18.9
68	GIMPS.NEO	66360	⬇ 1	⬇ 2	⬇ 1				75.0	25.0
69	Team Israel	62941	⬇ 1	⬇ 1			96.6		1.3	2.2
70	Colorado School of Mines	59028	⬆ 61	⬆ 33	⬆ 7	⬆ 1	74.3		18.5	7.1
71	AMD Users	58620	⬇ 13			⬇ 1	79.6		14.8	5.6
72	Team_Italia	56529	⬆ 2	⬆ 1		⬆ 1	2.2		74.1	16.7	1.8	4.5
73	ParadoxZ Commando	56456		⬆ 1	⬇ 3	⬇ 1			75.1	24.9
74	AJ	51128	⬆ 1	⬆ 3	⬇ 1				76.4	23.6
75	Team Belgium	49605	⬇ 10	⬇ 3	⬆ 1	⬆ 2	1.5	7.0	39.8	14.6	37.2
76	ComputerraRU	49279	⬇ 20	⬇ 9	⬇ 2	⬇ 1	15.9		76.1	7.9
77	S147127	48144	⬇ 1	⬇ 1	⬇ 2	⬇ 1	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	43232	⬆ 3						81.0	6.1	12.9
80	Team Austria	42756	⬇ 8	⬇ 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	35805	⬇ 6		⬆ 1			1.1	66.6	32.0	0.1
84	Team H	35048	⬇ 5	⬇ 2	⬇ 1		9.0	1.7	88.8	0.5
85	Hermessz	32115	⬇ 2	⬇ 1			59.0		41.0
86	HardOCP	30097	⬆ 7		⬆ 2	⬆ 1			79.4	20.6
87	Small-Team-2000	29404	⬆ 3			⬇ 1			10.6	89.3
88	huskers-gimps	28688	⬆ 15	⬆ 1	⬆ 1				75.6	24.4
89	Debian	28489	⬆ 11	⬇ 1	⬆ 1				98.1	1.9
90	MadPoo	27097	⬇ 47	⬇ 33	⬇ 4			17.3	15.1	67.6
91	Costa Rica	22748							71.4	28.2
92	Portland State University	21403	⬇ 7	⬆ 2	⬆ 1		19.0	22.1	47.6	11.3
93	Team Norway	20992	⬆ 5	⬆ 3	⬆ 1		84.1			2.4	12.4	1.2
94	Team Retired	20871	⬆ 1	⬆ 1	⬆ 1				26.6	10.1
95	Ozzie Prime	19865	⬇ 8	⬆ 3	⬆ 3			4.3	62.5	12.3		21.0
96	Quantus	18843	⬇ 2	⬇ 6			10.7		28.7	27.0		33.5
97	Spain	18718	⬇ 11	⬇ 12	⬇ 5		34.0		41.7	24.3
98	A Single Engineer	18642	⬆ 3	⬆ 1	⬆ 2				78.4	21.6
99	SpartaAlumni	18566	⬇ 7	⬇ 6					72.2	27.8
100	PrimitiveRootsCircle	18211	⬆ 6		⬆ 1		36.2		38.7	22.5	2.6
101	The Fellowship of Infinity	17137	⬆ 42	⬆ 10	⬆ 3				99.5	0.5
102	Channel 4	17103	⬇ 13	⬆ 2					84.7	15.2
103	Team Slovenia	16998	⬇ 15	⬇ 6	⬇ 6				72.8	27.2
104	GIMPS.Taiwan	16564	⬇ 7	⬇ 3	⬇ 1				88.9	10.7
105	Nerdfighters for Mersenne Primes	16247	⬇ 1	⬆ 3			2.9		80.8	16.3
106	MurrayInfoSys	14892	⬆ 13	⬆ 10	⬆ 4				63.2	36.8
107	GIMPS.Portugal	14619		⬇ 1		⬆ 1	0.1	71.6		28.3
108	Politeknik Banting, Selangor	14464	⬇ 27	⬇ 16	⬇ 2	⬇ 1	77.9		5.5	16.6
109	moeses	14228	⬆ 1	⬇ 2					99.4	0.6
110	Granada	14211	⬇ 2	⬇ 1	⬇ 2		33.8		5.4	60.3
111	ᕙ(⇀‸↼‶)ᕗ	14194	⬆ 35	⬆ 9	⬆ 4				99.5	0.5
112	NanJing Tech	13963	⬆ 129	⬆ 126	⬆ 15				100.0
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	⬆ 1					67.6	32.4
118	VIPR	11058	⬇ 2	⬇ 3					70.6	29.4
119	FREE ROBUX	10852	⬆ 122	⬆ 119	⬆ 114				100.0
120	Die Zeitfinder	10777	⬇ 7	⬇ 7	⬇ 4				100.0
121	Royal Military College of Canada	10691	⬆ 120	⬇ 2	⬇ 2		89.7		7.9	2.4
122	Abacus	10326	⬆ 7	⬆ 1	⬇ 1				92.1	7.9
123	FreeBSD	10250	⬇ 18	⬇ 11	⬇ 3		14.5		73.6	11.9
124	nmbarek_team	9947	⬇ 4	⬇ 3	⬇ 2				99.8	0.2
125	Triangle	9572	⬇ 10	⬇ 3	⬆ 3				96.6	3.4
126	JiBoTeam	9405	⬆ 2	⬆ 3	⬇ 2	⬆ 1				100.0
127	TurkishMath	9327	⬇ 6	⬇ 3	⬇ 2	⬆ 1			91.8	8.2
128	Syntony	9279	⬇ 1	⬇ 3	⬇ 5	⬇ 2				100.0
129	Shaffer's Studio	8961	⬇ 6	⬇ 3	⬇ 3				86.1	13.8
130	Server66	8528	⬇ 6	⬇ 2	⬇ 1		100.0
131	Furry Primes	8022	⬆ 2	⬇ 1	⬇ 1		58.8		27.1	14.1
132	Aiblspitz	7837	⬆ 9	⬆ 1	⬆ 1	⬆ 1	2.1	59.2	20.2	16.4	2.1
133	Turku	7799	⬇ 34	⬇ 16	⬇ 1	⬇ 1			100.0
134	Team Splunk	7605	⬇ 2	⬇ 2				28.1	71.9
135	irowiki	7567	⬇ 10	⬇ 8	⬇ 4					100.0
136	NUST	7223	⬆ 105	⬆ 36	⬆ 6	⬆ 1	13.3	80.8		5.9
137	Brasil	7119	⬇ 7	⬇ 6	⬇ 2	⬇ 1			76.5	23.4
138	WSU Cougars	6864	⬆ 1	⬇ 3	⬇ 2				56.6	43.3
139	Prime Rib	6850	⬇ 25	⬇ 3	⬆ 1				97.2	2.8
140	SU Prime Pirates	6437	⬆ 2	⬇ 2	⬇ 3				61.5	38.5
141	University of Waterloo	6259	⬆ 7	⬇ 7	⬇ 3				100.0
142	Team Christensen	6245	⬇ 2	⬇ 2	⬇ 3					100.0
143	Com Systems (RU)	6152	⬆ 49	⬆ 10	⬆ 5				63.2	36.8
144	Elisabeth-von-Thadden-Schule	6033	⬆ 5	⬇ 2	⬇ 3				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	zeit	5314	⬇ 12	⬇ 6			3.2			96.8
150	The_Dude_Abides	5303	⬇ 24	⬇ 9	⬇ 5		37.2			53.2
151	3DCenter.org	4918	⬇ 13	⬇ 7	⬇ 1						100.0
152	Black Mesa	4738	⬇ 40	⬇ 15	⬇ 1				86.5	13.5
153	Danpi for GIMPS	4710	⬇ 2	⬇ 5	⬇ 1		100.0
154	Hong Kong GIMP	4669	⬆ 7	⬇ 3	⬇ 1				66.8	33.2
155	ANDY	4448	⬇ 2	⬇ 6	⬇ 1				99.3	0.6
156	The East Coast	4426	⬇ 54	⬇ 6	⬇ 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	I Love Canadian Natural Resources	3472	⬆ 9	⬇ 2	⬇ 1					100.0
162	Phi Kappa Theta	3342	⬆ 12	⬇ 2	⬇ 1				70.6	29.4
163	Artists of Fine Art	3291	⬇ 28	⬇ 9	⬇ 1				93.0	7.0
164	Zorin OS Crew	3201	⬇ 6	⬇ 3	⬇ 1				70.1	29.9
165	Team_Brazil	2999	⬆ 3	⬇ 1	⬇ 1		83.1	0.2		16.7
166	Subprime Searches	2630	⬇ 11	⬆ 2			90.3			9.7
167	EggCelentes	2574	⬆ 5	⬇ 1					42.1	57.9
168	alan145	2466	⬇ 6	⬇ 11	⬇ 3		82.7	1.2		0.3	15.7
169	VRS_SE	2359	⬆ 17		⬇ 1				66.8	33.2
170	Noam Karni Team	2359	⬆ 51	⬆ 19		⬆ 2			67.0	33.0
171	Korea.Prime	2330	⬆ 28	⬆ 19	⬆ 1	⬇ 1			67.0	32.9
172	Saudi Primes	2268	⬇ 3	⬇ 7	⬇ 3	⬇ 1				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	His Dark Materials	1826	⬇ 13	⬇ 9	⬇ 3					47.3	52.7
177	Obsidian	1821	⬆ 2	⬆ 2						100.0
178	GIMPS_IOM	1712	⬆ 3	⬇ 2			100.0
179	BrainStone	1712	⬇ 12	⬇ 16	⬇ 5					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	⬆ 2	⬇ 5	⬇ 1				100.0
184	UCLA Linux Users Group	1536	⬇ 25	⬇ 14	⬇ 1				100.0
185	TimE4This	1481	⬇ 10	⬇ 1	⬇ 1					100.0
186	OcUK - Overclockers UK	1409	⬇ 13	⬇ 1	⬇ 1				100.0
187	The Prime Pioneers	1395	⬆ 7	⬆ 8	⬆ 2		21.7	50.2		18.2	9.6
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	⬆ 4	⬆ 5					99.6	0.4
193	Weatopians	793	⬆ 4	⬆ 5					99.7	0.3
194	Sæve Nordic Prime	792	⬆ 4	⬆ 5					98.6
195	hreid	776	⬇ 8	⬇ 12	⬆ 1				100.0
196	crazyBerlin	774	⬇ 60	⬇ 16	⬇ 1				100.0
197	cr_colorado	774	⬇ 7	⬆ 6	⬆ 1					100.0
198	Team Arizona	771	⬇ 33	⬇ 27	⬆ 1				100.0
199	ISISS Valle Seriana	770	⬇ 11	⬆ 1	⬇ 2				98.4	1.6
200	NuggetFarms	764	⬇ 43	⬇ 19					100.0
201	Czech National Team	731	⬇ 51	⬇ 39			5.1			90.9	2.4
202	SGDynamo Dresden	581	⬆ 2	⬆ 2			100.0
203	Team Bulgaria	579	⬇ 1	⬆ 2						36.7	63.2
204	GIMPS_KS	554	⬆ 37	⬆ 29	⬆ 1					94.5	5.5
205	TeamEc	552	⬆ 1	⬆ 2	⬆ 1					75.6	24.4
206	PrimeObsession	539	⬆ 35	⬆ 32	⬆ 1					100.0
207	math.auth.gr	518	⬆ 4	⬆ 2	⬆ 1					100.0
208	Join Us 😈	517	⬆ 4	⬆ 2	⬆ 1		100.0
209	Name (t) = A x e^kt	483	⬆ 5	⬆ 3	⬆ 1					100.0
210	London Computation Club	478	⬆ 5	⬆ 3	⬆ 1					100.0
211	Team Dominik Radler	474	⬇ 2	⬇ 3	⬆ 1		100.0
212	Team Ribbs	336	⬇ 2	⬆ 2	⬆ 1					100.0
213	KnightLight	315	⬆ 6	⬆ 2	⬆ 1					99.3
214	Unteranger Primelurche	273	⬇ 9	⬇ 8	⬇ 10					100.0
215	www.Adamek.biz	265	⬆ 5	⬆ 3						100.0
216	Morocco	264	⬆ 25	⬆ 22	⬆ 17					100.0
217	Therian Primes	262	⬆ 24	⬆ 21	⬆ 16					100.0
218	Math Teachers of the World	259	⬇ 5	⬆ 1	⬇ 2				100.0
219	GIMPS Hams	253	⬆ 3	⬆ 1	⬇ 2			100.0
220	The Goodest Team	253	⬆ 3	⬆ 1	⬇ 2					100.0
221	Lithuania LT	247	⬇ 4	⬆ 1	⬇ 1					100.0
222	Prime-UAE	247	⬇ 38	⬇ 11	⬇ 3					100.0
223	DividerHunt	221	⬆ 9	⬆ 2	⬇ 2		100.0
224	yfinder	208	⬆ 1	⬇ 1	⬇ 2					100.0
225	30thousandwon	193	⬇ 25	⬇ 1	⬇ 2					100.0
226	/r/counting	175	⬆ 4	⬆ 1	⬇ 2
227	GIMPS.Peace	122	⬆ 14	⬆ 3	⬇ 2		44.7	55.3
228	TeamUbuntu	121	⬆ 3	⬆ 1	⬇ 2					100.0
229	FourthFloorFourEyes	46	⬇ 34	⬆ 3	⬇ 2		100.0
230	PROMYS	23	⬆ 3	⬆ 4	⬇ 2						100.0
231	ALGERIA	16	⬆ 5	⬆ 5	⬇ 2						100.0
232	sannerud.com	10	⬆ 2	⬆ 3	⬇ 2						100.0
233	CZAsTc	6	⬆ 7	⬆ 4	⬇ 2					97.2
234	Team Ireland	3	⬇ 51	⬇ 32	⬇ 2					98.7