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 2026-03-29 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	885983538					0.3		0.1		99.7
2	Slovakia	767434843	⬆ 1				0.1	97.8	0.1		2.0
3	PrimeNet	337608485	⬇ 1	⬆ 1				97.4	0.3	0.4	1.9
4	POLAND	269950958		⬇ 1			0.4	98.2	0.2		1.2
5	-Too many Ones-	185160892					0.2	91.9			7.9
6	Ars Technica Team Prime Rib	92721784						98.9		1.0
7	unRAID	33448249						99.6	0.3
8	GIMPSChina	22362907					72.5	18.9	4.0	0.6	3.9
9	More Power!!!	14316790	⬆ 1	⬆ 1			13.7	55.6	1.9	1.0	27.8
10	One Man Team	13942885	⬇ 1	⬇ 1				99.5	0.5
11	GW's legions	12838233					0.1	0.9	31.9	1.1	66.1
12	Team-Deutschland	12220850		⬆ 1	⬆ 1		3.2	21.4	0.4	0.1	74.8
13	UCM-curtisc	11793877		⬇ 1	⬇ 1				99.3	0.7
14	szerverem.hu	7604114	⬆ 19	⬆ 1	⬆ 1	⬆ 1	5.6	38.7	44.8	4.9	6.0
15	TeamUK	7559459	⬇ 1	⬇ 1	⬇ 1	⬇ 1	42.6	4.3	18.1	1.3	33.6	0.1
16	Porta Kruse	6419682	⬆ 3				2.0	0.3			91.5	6.1
17	GPU to 72	4650087	⬇ 2				54.2	26.1	0.5	3.9	15.1
18	SpongeBob SquarePants	2876735	⬇ 2					31.0	59.6	9.2	0.2
19	Numberphile	2827121	⬇ 2				26.9	42.9	22.6	6.6	0.7
20	tsc	2476375					83.4	5.2	1.4	0.3	9.7
21	UKRAINE	2067181					25.1	13.7	43.6	17.4
22	Wikipedia	2032352		⬆ 1			60.0	32.8	4.1	2.2	0.8
23	UW Eau Claire	2022638	⬆ 44	⬆ 5			87.3		9.4	3.4
24	Dutch Power Cows	1738643	⬇ 6	⬇ 2			31.4	28.7	1.4	1.5	37.1
25	GIMPS.USA	1455616	⬇ 1				7.5	0.4	4.6	1.6	85.8
26	Swedes Of Primes	1401397	⬇ 3	⬇ 2			0.5	81.4	15.6	2.6
27	GIMPS.Japan	1365250	⬇ 2	⬇ 1			4.4	0.1	9.1	2.2	84.2
28	GIMPS.Occitania	1190189	⬇ 2	⬇ 1				4.4				95.6
29	GIMPS.Korea	786206	⬆ 8	⬆ 3			89.2	4.6	5.2	0.8	0.1
30	MBAi.Cloud	734803							100.0
31	MATHSareREAL	636521	⬇ 4				95.7		3.1	1.2
32	MOXA	579936	⬇ 4	⬇ 3			99.0		0.7	0.3
33	citizenscience.ru	534392	⬇ 2	⬆ 2			88.3	3.8	3.6	0.8	3.0	0.5
34	Rechenkraft.net	450788	⬇ 5	⬇ 1			4.8	56.6	3.4	5.5	29.1	0.6
35	Buhr	447062	⬇ 1	⬆ 1			58.5	3.6	19.1	5.8	13.0
36	Terry Kim Team	433356	⬇ 4	⬇ 2			97.2		1.8	0.6
37	S485122	308729	⬇ 1					95.0		5.0
38	Smoke-it	266161	⬇ 3				90.5	7.1	1.8
39	Colorado School of Mines	221296	⬆ 46	⬆ 9	⬆ 3		91.4		6.5	2.0
40	randomteam	208173	⬆ 3	⬆ 4							100.0
41	YahsTeam	204795	⬇ 3	⬇ 2	⬇ 2		89.2		8.8	2.0
42	GIMPS Team Philippines	204479	⬆ 4	⬇ 1	⬆ 1		70.5		4.1	1.6	21.6
43	NerdyGirls	204116	⬇ 1	⬇ 1	⬇ 2			42.0	7.5	50.4
44	nranks	196065	⬆ 1	⬇ 4	⬆ 1		36.4	0.6	3.6	0.4	59.0
45	Canada	193283	⬇ 5	⬇ 2	⬆ 1	⬆ 1		2.8	65.4	30.8
46	404 - "Primes not Found"	192548	⬆ 22		⬇ 2	⬇ 1	78.3		21.7
47	Team Tartan	186902	⬇ 6	⬇ 2					76.5	23.5
48	OverclockerAustralia	149200	⬇ 1	⬆ 2			58.9		20.9	16.7
49	GIMPS China	129654	⬇ 10	⬇ 2		⬆ 1	91.9		3.9	0.2	3.7
50	BitMEX Research	129592	⬇ 6	⬇ 1		⬇ 1			95.3	4.7
51	Team China	121952	⬆ 1						99.7	0.3
52	GIMPS.NZ	121285	⬇ 1				78.7		10.2	11.0
53	Unicamp	119694	⬆ 3				72.1	0.1	23.0	4.8
54	SASAKI	111480					100.0
55	GIMPS.France	105682	⬆ 10	⬆ 4	⬆ 2	⬆ 1	10.6	60.1	3.7	12.3	13.1
56	EgyptianPolymaths	105650	⬇ 1	⬇ 1	⬇ 1	⬇ 1		40.4			54.4
57	Wisconsin	101970	⬇ 4		⬇ 1		48.1		27.5	24.3
58	Cap'n Entropy's Cavalcade of Wonderment	98228	⬇ 8	⬇ 2			74.9	5.6	17.3	2.1
59	SHADO	91529	⬇ 1	⬆ 1					66.8	16.1	10.0	1.9
60	UIUC	81357	⬆ 3	⬆ 2					69.9	30.0
61	NanJing Tech	79243	⬆ 97	⬆ 37	⬆ 6	⬆ 2	31.1		61.6	7.2
62	AMD Users	76288	⬆ 11	⬆ 3	⬆ 1		61.1	0.8	12.5	25.1	0.5
63	Net-Work	76092	⬇ 2	⬇ 2	⬇ 2	⬇ 2	3.2	1.8			86.4
64	Eratosthenes Sieve	74609		⬇ 1	⬇ 2		0.7		95.7	3.5
65	Argentina	71263	⬆ 168	⬆ 162	⬆ 11	⬆ 2			100.0
66	Esperanto	69499	⬇ 4	⬇ 2	⬇ 1	⬇ 1		25.2	9.0	65.6	0.2
67	Hungary	69016	⬇ 10	⬇ 9	⬇ 3	⬇ 1	0.6		1.1	2.6	95.3
68	AJ	63385	⬆ 7	⬆ 2	⬇ 2				76.1	23.9
69	Wile E. Coyote	61304	⬆ 11	⬆ 7	⬇ 1				77.4	2.2	20.4
70	Team_Italia	60169	⬆ 1	⬆ 1			2.7		70.2	20.8	2.1	3.5
71	ParadoxZ Commando	58422	⬇ 1	⬇ 2	⬇ 2				72.7	27.3
72	IOTA	57913	⬆ 161	⬆ 17	⬆ 1	⬆ 1	94.8		2.9	2.3
73	Team Israel	57318	⬇ 4	⬇ 6	⬇ 2	⬇ 1	97.3		1.4	1.4
74	S147127	55830	⬆ 2			⬆ 1	26.7		11.8	61.5
75	GIMPS.NEO	55279	⬇ 9	⬇ 7	⬇ 3	⬇ 1			77.2	22.8
76	Brno University of Technology	53734	⬇ 16	⬇ 4	⬇ 1			19.2	65.7	15.1
77	ComputerraRU	51913	⬇ 5		⬆ 1		19.8		71.1	9.1
78	Team Belgium	51338	⬇ 4	⬇ 5	⬇ 1		1.1	8.0	34.8	15.3	40.8
79	LTT fans	44381	⬇ 20	⬇ 4			32.4		5.2	0.5	61.9
80	Team Viet Nam	43404	⬇ 2	⬇ 2			28.1		30.7	30.5	10.7
81	Turku	37051	⬆ 48	⬆ 10	⬆ 1				100.0
82	HardOCP	36819	⬆ 5	⬆ 3	⬆ 2	⬆ 1			77.8	22.2
83	Team Austria	36150	⬇ 4	⬇ 3	⬇ 2	⬇ 1	94.7	0.6	4.7
84	Debian	35631	⬆ 5	⬆ 2	⬆ 1				98.4	1.6
85	huskers-gimps	35056	⬆ 5	⬇ 1	⬆ 1				74.0	26.0
86	Team H	34965	⬇ 2	⬇ 5	⬇ 3		12.0	0.5	86.9	0.6
87	Hermessz	32596	⬇ 1	⬇ 5			64.2		35.8
88	MES-Team	30646	⬇ 11	⬇ 5			71.8	7.3		20.9
89	socal_prime	30103	⬇ 6	⬇ 1		⬆ 1		1.0	67.2	31.6	0.1
90	Small-Team-2000	28924	⬇ 2			⬇ 1			10.8	89.2
91	ᕙ(⇀‸↼‶)ᕗ	27981	⬆ 24	⬆ 2	⬆ 1		0.8		98.9	0.4
92	VIPR	25707	⬆ 28	⬆ 7	⬆ 1		62.9		24.5	12.5
93	LimePrime	24252	⬇ 11	⬇ 6	⬇ 2			5.8	86.6	7.6
94	The Fellowship of Infinity	22618	⬆ 12	⬆ 1	⬆ 1				99.5	0.5
95	Channel 4	22410	⬆ 9	⬇ 1	⬆ 1				81.1	18.9
96	Costa Rica	22292	⬇ 5	⬇ 4	⬆ 1				72.7	26.9
97	MurrayInfoSys	20157	⬆ 13	⬆ 4	⬆ 1				66.7	33.3
98	Team Retired	19786	⬇ 4	⬇ 2	⬆ 1				27.7	10.8
99	PrimitiveRootsCircle	19266	⬆ 2	⬇ 2	⬆ 1		23.1		49.2	25.2	2.5
100	A Single Engineer	18052		⬆ 2	⬆ 1				72.9	27.1
101	SpartaAlumni	17597	⬇ 3	⬆ 2	⬆ 1				70.7	29.3
102	Ozzie Prime	16208	⬇ 3	⬆ 4	⬆ 2			4.4	43.5	15.1		37.0
103	Nerdfighters for Mersenne Primes	15020	⬆ 2	⬆ 5	⬆ 3	⬆ 1			88.0	12.0
104	Team Norway	14988	⬇ 9	⬆ 1	⬆ 1	⬇ 1	80.2			5.1	14.5
105	Spain	14918	⬇ 13	⬆ 6	⬆ 3				62.8	37.2
106	GIMPS.Portugal	14450	⬆ 1	⬆ 3	⬆ 3		0.1	72.4		27.5
107	Quantus	14447	⬇ 11				8.4		21.5	26.3		43.7
108	SETI.Germany	14419	⬆ 6	⬆ 2	⬆ 2			6.6	22.0	71.4
109	NUST	14223	⬆ 42	⬆ 7	⬆ 2		16.4	74.6	5.9	3.0
110	Portland State University	13857	⬇ 17	⬇ 10	⬇ 7			32.6	51.9	15.4
111	Team Finland	13653	⬇ 62	⬇ 32	⬆ 2		0.9		97.1		2.0
112	Mensa	12705	⬆ 6	⬆ 5	⬆ 3	⬆ 1			74.2	25.8
113	Georgia Tech	12350	⬇ 65	⬇ 47	⬇ 19	⬇ 1			100.0
114	moeses	11803	⬇ 6	⬇ 1					99.0	1.0
115	Team Slovenia	11635	⬇ 18	⬇ 3	⬆ 1				73.5	26.5
116	MadPoo	11398	⬇ 35	⬇ 12	⬇ 4			41.2		58.8
117	Aiblspitz	11380	⬆ 15	⬆ 16	⬆ 6	⬆ 1	1.5	71.9	13.9	11.3	1.5
118	Politeknik Banting, Selangor	11308	⬇ 16	⬇ 3		⬇ 1	88.6		7.0	4.4
119	GIMPS.Taiwan	11100	⬇ 16	⬇ 5	⬇ 2				85.7	13.8	0.1
120	FREE ROBUX	10852	⬆ 113	⬆ 1					100.0
121	Granada	10754	⬇ 12	⬇ 3	⬇ 2		32.8		14.6	51.9
122	Royal Military College of Canada	10691	⬇ 3		⬇ 1		89.7		7.9	2.4
123	Com Systems (RU)	10562	⬆ 24	⬆ 5	⬇ 1				66.4	33.6
124	Server66	9937	⬆ 4	⬆ 7	⬆ 1		100.0
125	Syntony	9610	⬇ 1	⬆ 1	⬆ 2					100.0
126	RobotechResearch	9443	⬆ 53	⬆ 9	⬆ 2				42.6	57.4
127	Die Zeitfinder	9249	⬇ 11	⬆ 2	⬆ 2				91.6	8.4
128	FreeBSD	9072	⬇ 11	⬇ 5	⬇ 4		0.5		78.0	21.5
129	Shaffer's Studio	8915	⬇ 3	⬇ 4	⬆ 1				87.0	12.9
130	JiBoTeam	8829	⬇ 5		⬆ 2					100.0
131	Hyperion	8690	⬇ 20	⬇ 12	⬇ 5					25.6
132	TurkishMath	8642	⬇ 9	⬆ 4	⬆ 1				82.1	17.9
133	MES22-Team	8136	⬇ 20	⬇ 9	⬆ 3		100.0
134	Abacus	8133	⬇ 13	⬇ 14	⬆ 1				96.3	3.7
135	Triangle	8084	⬇ 8	⬇ 3	⬇ 4				96.0	4.0
136	Team Splunk	7605	⬇ 3	⬆ 2	⬆ 1			28.1	71.9
137	University of Waterloo	7461	⬇ 2	⬆ 2	⬆ 2				100.0
138	irowiki	7202	⬇ 8	⬇ 1						100.0
139	youngfun429	6875	⬇ 27	⬇ 12	⬇ 5				56.2	43.8
140	Brasil	6665	⬇ 6						82.0	17.9
141	Prime Rib	6538	⬇ 1						96.6	3.4
142	SU Prime Pirates	6437	⬇ 5						61.5	38.5
143	Team Christensen	5977	⬇ 4	⬆ 1		⬆ 1				100.0
144	GIMPS Romania	5966		⬆ 2		⬇ 1	2.5		93.1	4.4
145	Elisabeth-von-Thadden-Schule	5757	⬇ 4						40.3	59.7
146	Furry Primes	5466	⬇ 15	⬇ 12			79.3			20.7
147	teamMALI	5165	⬇ 5	⬆ 2	⬆ 3				75.5	24.5
148	nmbarek_team	4954	⬇ 26		⬆ 1				99.8	0.2
149	Hong Kong GIMP	4912	⬆ 5	⬆ 1	⬆ 2	⬆ 1			63.7	36.3
150	The_Dude_Abides	4902	⬇ 7	⬇ 3	⬇ 2	⬇ 1	37.1			54.3
151	Danpi for GIMPS	4710	⬇ 1	⬆ 1	⬆ 1		100.0
152	Olympic College	4331	⬆ 4	⬆ 2	⬆ 2					100.0
153	zeit	4288	⬇ 5	⬇ 2			2.1			97.9
154	México mágico	4204	⬆ 34	⬆ 5	⬆ 1				75.3	24.7
155	Crunching@EVGA	4104	⬆ 23	⬆ 2	⬆ 1				99.7	0.3
156	FactorMania	4019	⬆ 26		⬆ 1			58.1			41.9
157	Noam Karni Team	3952	⬆ 30	⬆ 1	⬆ 1				80.0	20.0
158	Kabylie	3786	⬇ 3	⬇ 5	⬆ 1		14.9	4.3	41.1	39.7
159	GIMPS.Hong Kong	3644	⬇ 2	⬆ 3	⬆ 5	⬆ 5	2.2		65.3	32.5
160	Korea.Prime	3637	⬆ 13			⬇ 1			64.6	35.4
161	WSU Cougars	3446	⬇ 25	⬇ 18	⬇ 14	⬇ 1			44.6	55.3
162	3DCenter.org	3087	⬇ 13	⬇ 7	⬇ 1	⬇ 1					100.0
163	Team_Brazil	2999	⬆ 2		⬇ 1	⬇ 1	83.1	0.2		16.7
164	Phi Kappa Theta	2820	⬇ 3		⬇ 1	⬇ 1			56.0	44.0
165	I Love Canadian Natural Resources	2507	⬇ 5							100.0
166	Pi Rho	2499	⬆ 67						67.1	32.9
167	GIMPSMalaysia	2394	⬆ 22	⬆ 1					66.8	33.2
168	VRS_SE	2360	⬆ 1	⬆ 1					66.8	33.2
169	Saudi Primes	2268	⬇ 3	⬆ 2	⬆ 2					100.0
170	GIMPS_KS	2199	⬆ 35	⬆ 2	⬆ 2				36.5	62.0	1.4
171	Obsidian	2082	⬆ 5	⬆ 6	⬆ 2					100.0
172	TunisianTeam	2052	⬇ 13	⬇ 2	⬇ 2				37.7	62.3
173	Arpan Sen Labs	2049	⬆ 60	⬆ 37	⬆ 6				20.6	79.4
174	Subprime Searches	2002	⬇ 6	⬇ 1	⬆ 1	⬆ 1	87.2			12.8
175	The Prime Pioneers	1998	⬆ 15	⬇ 8	⬇ 1	⬇ 1	1.2	98.8
176	The Pensis	1869	⬇ 2	⬇ 1						100.0
177	F=dp/dt	1845	⬇ 2	⬇ 1					85.8	14.2
178	GIMPS_IOM	1712	⬇ 1	⬆ 1			100.0
179	San Francisco	1586	⬆ 1	⬆ 3	⬆ 1				100.0
180	ANDY	1582	⬇ 28	⬆ 1	⬆ 1				98.8	1.2
181	cr_colorado	1549	⬆ 52	⬆ 2	⬆ 1					100.0
182	International School of Beijing (ISB)	1544	⬇ 44	⬇ 21	⬇ 13				99.3	0.7
183	Zorin OS Crew	1470	⬇ 19	⬇ 5					52.5	47.5
184	CZAsTc	1447	⬆ 48	⬆ 1					99.6	0.4
185	math.auth.gr	1355	⬆ 24	⬆ 1					61.7	38.3
186	Czech National Team	1182	⬆ 15	⬆ 19	⬆ 1	⬆ 1	3.2		70.1	24.2	1.5
187	His Dark Materials	1066	⬇ 16	⬇ 7	⬇ 1	⬇ 1				40.9	59.0
188	Morocco	1065	⬆ 45	⬆ 1	⬆ 1					100.0
189	Therian Primes	1007	⬆ 44	⬆ 11	⬆ 1			14.6		52.4	33.0
190	Optimists Prime	991	⬇ 44	⬇ 16	⬇ 2			100.0
191	alan145	891	⬇ 28	⬇ 3			99.5			0.5
192	TimE4This	876	⬇ 11	⬇ 8						100.0
193	AWC	801	⬆ 40	⬇ 3					100.0
194	GIMPS Asturias	794	⬇ 1	⬇ 3					99.6	0.4
195	Weatopians	793	⬇ 1	⬇ 3					99.7	0.3
196	Sæve Nordic Prime	781	⬇ 1	⬇ 3					100.0
197	hreid	776		⬇ 3					100.0
198	Join Us 😈	708	⬆ 12	⬆ 1	⬆ 1		100.0
199	SGDynamo Dresden	580	⬆ 3	⬆ 2	⬆ 1		100.0
200	PrimeObsession	539	⬆ 7	⬆ 2	⬆ 1					100.0
201	London Computation Club	478	⬆ 12	⬆ 2	⬆ 1					100.0
202	Team Dominik Radler	351	⬆ 6	⬆ 4	⬆ 1		100.0
203	/r/counting	337	⬆ 22	⬆ 4	⬆ 1
204	KnightLight	315	⬆ 11	⬆ 4	⬆ 1					99.3
205	Yurunago	276	⬆ 28	⬆ 4	⬆ 1					100.0
206	www.Adamek.biz	265	⬆ 11	⬆ 5	⬆ 1					100.0
207	Math Teachers of the World	259	⬆ 11	⬆ 6	⬆ 1				100.0
208	GIMPS Hams	253	⬆ 11	⬆ 6	⬆ 1			100.0
209	DividerHunt	221	⬆ 15	⬆ 6	⬆ 1		100.0
210	Manri Costa Rica	213	⬇ 19	⬆ 6	⬆ 2					100.0
211	30thousandwon	193	⬆ 12	⬆ 6	⬆ 2					100.0
212	Team Bulgaria	165	⬇ 9	⬆ 6	⬆ 2						99.9
213	miiro	150	⬆ 20	⬆ 6	⬆ 2		100.0
214	GIMPS.Peace	122	⬆ 13	⬆ 6	⬆ 2		44.7	55.3
215	TeamUbuntu	121	⬆ 11	⬆ 6	⬆ 2					100.0
216	sannerud.com	108	⬆ 15	⬆ 9	⬆ 2		43.1				19.4	37.5
217	PROMYS	23	⬆ 12	⬆ 7	⬆ 3	⬆ 1					100.0
218	PARG team	21	⬆ 15	⬆ 9	⬆ 3	⬆ 1					100.0
219	TeamEc	1	⬇ 13	⬆ 4	⬆ 4	⬆ 1					100.0
220	yfinder	1	⬆ 2	⬆ 6	⬆ 4	⬆ 1				100.0