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 2026-03-13 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	924624047					0.3		0.1		99.6
2	Slovakia	765717562	⬆ 1				0.1	97.8			2.0
3	POLAND	403169799	⬆ 1				0.3	98.9	0.2		0.7
4	PrimeNet	337618226	⬇ 2					97.4	0.3	0.4	1.9
5	-Too many Ones-	188903274					0.2	92.1			7.7
6	Ars Technica Team Prime Rib	72966207						98.6	0.1	1.2
7	unRAID	33456062						99.6	0.4
8	GIMPSChina	22506461					74.1	17.9	4.0	0.6	3.3
9	More Power!!!	14640944	⬆ 1	⬆ 1			13.6	56.5	1.9	0.9	27.2
10	One Man Team	13946741	⬇ 1	⬇ 1				99.4	0.6
11	GW's legions	12784992					0.1	0.9	31.0	1.0	67.1
12	UCM-curtisc	11884275	⬆ 1						99.3	0.7
13	Team-Deutschland	11398215	⬇ 1				3.6	11.8	0.4	0.1	84.0
14	TeamUK	7510724					41.4	4.8	18.3	1.3	34.0	0.1
15	szerverem.hu	7309777	⬆ 223				5.8	37.0	45.8	5.1	6.2
16	Porta Kruse	6427203	⬆ 11				2.0	0.2		0.1	91.5	6.1
17	GPU to 72	4604586	⬇ 2				55.3	25.6	0.5	3.9	14.5
18	SpongeBob SquarePants	3137149	⬇ 2					30.9	59.6	9.2	0.3
19	Numberphile	2903350	⬇ 1				28.3	41.5	22.5	6.6	0.9
20	tsc	2325852	⬇ 1				90.0	5.8	1.5	0.3	2.4
21	UKRAINE	2039833	⬇ 1	⬆ 1		⬆ 1	27.3	14.8	42.7	15.1
22	Wikipedia	2003971	⬇ 1	⬆ 1		⬇ 1	59.5	33.3	4.0	2.2	0.8
23	Dutch Power Cows	1870654	⬇ 6	⬇ 2			33.0	27.7	1.3	1.4	36.6
24	UW Eau Claire	1535071	⬆ 57	⬆ 11	⬆ 4		85.8		10.5	3.7
25	Swedes Of Primes	1438741	⬇ 3	⬇ 1	⬇ 1		0.4	82.9	14.1	2.5
26	GIMPS.USA	1394578	⬇ 2	⬇ 1	⬇ 1		4.8	0.2	4.0	1.4	89.5
27	GIMPS.Japan	1357420	⬇ 4	⬇ 1	⬇ 1		4.3	0.1	8.7	2.2	84.7
28	GIMPS.Occitania	1302492	⬇ 3	⬇ 1	⬇ 1			4.1				95.9
29	MBAi.Cloud	714533	⬆ 1	⬆ 1					100.0
30	GIMPS.Korea	705158	⬆ 7	⬆ 1			88.8	4.5	5.8	0.8	0.1
31	MATHSareREAL	643814	⬇ 5	⬇ 2	⬆ 1		95.5		3.3	1.2
32	MOXA	636411	⬇ 4	⬇ 4	⬇ 1		98.9		0.7	0.4
33	citizenscience.ru	490007	⬇ 2	⬆ 1	⬆ 2		86.0	5.4	3.9	0.9	3.3	0.6
34	Rechenkraft.net	461927	⬇ 5	⬇ 2	⬇ 1		4.7	58.1	3.0	5.6	28.0	0.6
35	Terry Kim Team	448025	⬇ 3	⬇ 2	⬇ 1		97.6		1.4	0.6
36	Buhr	445332	⬇ 2				60.2	3.2	19.3	5.9	11.3
37	S485122	310183	⬇ 2					95.0		5.0
38	Smoke-it	269520	⬇ 5				90.6	7.0	1.8
39	YahsTeam	214899	⬇ 1				88.6		9.4	2.0
40	randomteam	208173	⬆ 2	⬆ 2	⬆ 2						100.0
41	NerdyGirls	206224	⬆ 5	⬇ 1		⬆ 1	0.2	41.6	7.5	50.8
42	GIMPS Team Philippines	205192	⬆ 3	⬆ 1	⬆ 1	⬇ 1	74.3		3.3	1.6	19.0
43	404 - "Primes not Found"	204705	⬆ 27	⬆ 5	⬆ 1		79.6		20.4
44	Canada	197770	⬇ 5	⬇ 3	⬆ 1			2.9	65.7	30.2
45	nranks	196386	⬇ 1		⬇ 5		36.1	0.6	4.0	0.4	58.9
46	Team Tartan	191296	⬇ 6	⬇ 2					76.7	23.3
47	Colorado School of Mines	187449	⬆ 56	⬆ 4			90.1		7.5	2.4
48	OverclockerAustralia	147944		⬆ 1	⬆ 1		59.4		21.1	16.0
49	GIMPS China	144833	⬇ 13	⬇ 3	⬇ 1		92.7		3.5	0.2	3.3
50	BitMEX Research	140333	⬇ 9	⬇ 3					95.6	4.4
51	Team China	125022		⬇ 1					99.7	0.3
52	GIMPS.NZ	121469	⬇ 2				78.6		10.2	11.2
53	Unicamp	117178	⬆ 5	⬆ 3			72.0	0.3	22.9	4.9
54	SASAKI	112684	⬇ 1	⬇ 1			100.0
55	EgyptianPolymaths	109660	⬇ 1					38.4			56.6
56	Wisconsin	104171	⬇ 4	⬆ 1	⬆ 1		49.9		26.5	23.7
57	Cap'n Entropy's Cavalcade of Wonderment	102992	⬇ 8	⬇ 3	⬇ 1		75.6	5.4	16.5	2.5
58	GIMPS.France	99652	⬆ 11	⬆ 2			11.2	55.1	4.8	14.9	13.9
59	SHADO	84404	⬆ 1	⬆ 2	⬆ 1				64.7	16.7	10.9	2.0
60	Hungary	82393	⬇ 4	⬇ 1	⬇ 1		0.5		2.2	2.7	94.1
61	UIUC	78659	⬆ 4	⬆ 1					70.3	29.7
62	Net-Work	76335		⬆ 1			2.9	1.9			86.5
63	Eratosthenes Sieve	74799	⬆ 1	⬆ 1			0.7		97.5	1.7
64	AMD Users	72129	⬆ 7	⬆ 6	⬆ 1		64.7	0.8	13.2	20.8	0.5
65	Esperanto	70463	⬇ 2		⬇ 1			24.8	11.9	63.1	0.2
66	AJ	61348	⬆ 11	⬆ 8					75.4	24.6
67	ParadoxZ Commando	59114	⬆ 7	⬆ 5	⬆ 2	⬆ 2			72.4	27.6
68	GIMPS.NEO	59103	⬇ 2			⬆ 2			76.1	23.9
69	Team_Italia	58564	⬆ 4	⬆ 4	⬆ 1	⬇ 1	2.7		68.1	22.6	2.1	3.8
70	Team Israel	58387	⬇ 2	⬇ 1	⬇ 3	⬇ 3	97.3		1.4	1.3
71	Wile E. Coyote	57486	⬆ 8	⬆ 7	⬆ 1				78.3	2.8	19.0
72	S147127	55006	⬆ 4	⬆ 4	⬆ 3	⬆ 3	24.8		12.0	63.2
73	Brno University of Technology	54876	⬇ 14	⬇ 2	⬇ 2	⬇ 1		20.7	62.9	16.4
74	Team Belgium	53979	⬇ 2	⬆ 1		⬇ 1	1.4	7.7	36.8	13.7	40.5
75	LTT fans	53054	⬇ 14	⬇ 9	⬆ 1	⬇ 1	41.6		5.8	0.8	51.8
76	ComputerraRU	49971	⬇ 9	⬆ 1	⬆ 1		15.3		75.2	9.4
77	IOTA	46869	⬆ 161	⬆ 21	⬆ 3		94.2		3.6	2.3
78	Team Viet Nam	43404	⬇ 23	⬆ 1		⬆ 1	28.1		30.7	30.5	10.7
79	Georgia Tech	43310	⬇ 36	⬇ 21	⬇ 6	⬇ 1	79.1		20.9
80	Team Austria	39218	⬇ 2		⬇ 1		93.8	0.5	4.4	1.3
81	NanJing Tech	35803	⬆ 157	⬆ 16	⬆ 11	⬆ 4	0.1		86.1	13.8
82	Team H	35605		⬇ 1	⬇ 1	⬇ 1	11.2	0.8	87.5	0.5
83	Turku	35352	⬆ 34	⬆ 10	⬆ 6				100.0
84	HardOCP	34669	⬆ 2	⬆ 4	⬇ 2	⬇ 2			77.9	22.1
85	Hermessz	34312	⬇ 1	⬇ 1	⬇ 2	⬇ 1	63.7		36.3
86	Debian	34048	⬆ 2	⬆ 1					98.4	1.6
87	huskers-gimps	33242	⬆ 2	⬇ 1	⬇ 3	⬆ 1			73.4	26.6
88	MES-Team	33175	⬇ 13	⬇ 5	⬇ 3	⬇ 1	72.1	7.3		20.6
89	socal_prime	31206	⬇ 6	⬇ 4	⬇ 2			1.0	64.9	34.0	0.1
90	LimePrime	28872	⬇ 10	⬇ 8	⬇ 2			4.9	88.8	6.3
91	Small-Team-2000	28702	⬇ 4	⬇ 2					10.9	89.1
92	Argentina	26324	⬆ 146	⬆ 138	⬆ 56				100.0
93	á•™(⇀‸↼‶)á•—	25628	⬆ 28	⬇ 2			0.8		98.8	0.4
94	Channel 4	23250	⬆ 10	⬇ 2					81.8	18.2
95	VIPR	22686	⬆ 20	⬆ 14	⬆ 1		53.5		31.2	15.3
96	The Fellowship of Infinity	21833	⬆ 16	⬇ 1	⬇ 1				99.5	0.5
97	Costa Rica	21187	⬇ 6	⬇ 7					72.5	27.1
98	Team Finland	20084	⬇ 51	⬇ 31	⬇ 8		32.7		66.0		1.3
99	Team Retired	20050	⬇ 4	⬇ 5	⬇ 1				27.3	10.5
100	Ozzie Prime	19792	⬇ 2	⬆ 6	⬇ 1			4.3	50.6	12.4		32.7
101	PrimitiveRootsCircle	19161	⬇ 1	⬇ 5	⬇ 1		28.0		45.4	24.1	2.5
102	MurrayInfoSys	18791	⬆ 14	⬆ 1	⬆ 1				66.9	33.0
103	A Single Engineer	18035	⬇ 4	⬇ 3	⬇ 2				72.8	27.2
104	Portland State University	17895	⬇ 11	⬆ 1	⬇ 2		22.7	25.1	40.2	12.0
105	SpartaAlumni	17579	⬇ 11	⬇ 4	⬇ 1				70.7	29.3
106	Team Norway	16065	⬇ 10	⬇ 7	⬆ 1		81.2			4.7	13.9
107	Quantus	15650	⬇ 17	⬇ 5	⬇ 1		7.8		24.8	27.1		40.4
108	Nerdfighters for Mersenne Primes	15393		⬇ 1			1.1		85.8	13.1
109	MadPoo	15299	⬇ 52	⬇ 5	⬇ 4			30.7		69.3
110	Spain	14667	⬇ 25	⬆ 1	⬇ 1				63.9	36.1
111	GIMPS.Portugal	14450	⬇ 5	⬇ 1	⬇ 1		0.1	72.4		27.5
112	SETI.Germany	14419	⬆ 2	⬆ 3	⬇ 1			6.6	22.0	71.4
113	NUST	13535	⬆ 58	⬆ 5			12.2	78.4	6.2	3.1
114	Team Slovenia	13292	⬇ 17	⬇ 6	⬇ 2	⬆ 2			75.9	24.1
115	GIMPS.Taiwan	12906	⬇ 14	⬇ 2	⬇ 1	⬇ 1			85.8	13.7	0.1
116	moeses	12572	⬇ 9		⬇ 1	⬇ 1			99.1	0.9
117	Granada	12225	⬇ 8	⬆ 2	⬇ 1		31.1		12.8	55.5
118	Mensa	11954	⬆ 1	⬇ 1					78.9	21.1
119	Politeknik Banting, Selangor	11924	⬇ 27	⬇ 7	⬇ 2		85.7		6.6	7.7
120	Abacus	11660			⬇ 1				95.1	4.9
121	FREE ROBUX	10852	⬆ 117	⬆ 1					100.0
122	Hyperion	10724	⬇ 12	⬇ 8	⬇ 2				2.4	30.4
123	Royal Military College of Canada	10691	⬇ 5		⬇ 1		89.7		7.9	2.4
124	FreeBSD	10084	⬇ 13	⬆ 2	⬇ 1		0.5		82.7	16.8
125	Server66	9937	⬆ 3	⬆ 7	⬇ 1		100.0
126	Aiblspitz	9862	⬆ 7	⬆ 7	⬆ 5		1.7	67.5	16.0	13.1	1.7
127	MES22-Team	9680	⬇ 25	⬇ 3	⬇ 1		100.0
128	Syntony	9569	⬇ 3		⬇ 3	⬆ 1				100.0
129	Com Systems (RU)	9520	⬆ 24	⬆ 6	⬇ 2	⬇ 1			65.4	34.6
130	RobotechResearch	8926	⬆ 47	⬆ 32	⬆ 4	⬆ 1			45.1	54.9
131	Shaffer's Studio	8908	⬇ 5	⬇ 2	⬇ 1	⬆ 1			87.0	12.9
132	Triangle	8851	⬇ 9	⬇ 2	⬆ 1	⬆ 1			96.4	3.6
133	youngfun429	8659	⬇ 28	⬇ 12	⬇ 5	⬆ 1			62.6	37.4
134	Die Zeitfinder	8474	⬇ 21	⬇ 9	⬇ 5	⬇ 4			100.0
135	JiBoTeam	8038	⬇ 6	⬇ 8	⬇ 3					100.0
136	TurkishMath	7800	⬇ 12	⬇ 5	⬆ 2	⬆ 3			80.2	19.8
137	irowiki	7619	⬇ 10	⬇ 1	⬇ 2	⬇ 1				100.0
138	Team Splunk	7605	⬇ 6	⬇ 1	⬇ 2	⬇ 1		28.1	71.9
139	University of Waterloo	7044	⬇ 5	⬆ 4	⬇ 2	⬇ 1			100.0
140	Furry Primes	6823	⬇ 10	⬇ 6	⬇ 1	⬆ 1	67.6		15.8	16.6
141	Brasil	6642	⬇ 10		⬇ 1	⬇ 1			82.3	17.6
142	Prime Rib	6524	⬇ 6	⬇ 4	⬇ 1				96.8	3.2
143	SU Prime Pirates	6437	⬇ 5	⬇ 3	⬇ 1				61.5	38.5
144	Team Christensen	5894	⬇ 3							100.0
145	GIMPS Romania	5815		⬇ 3					95.5	4.5
146	Elisabeth-von-Thadden-Schule	5757	⬇ 4	⬇ 1	⬇ 3				40.3	59.7
147	The_Dude_Abides	5119	⬇ 7	⬇ 1			37.0			52.0
148	WSU Cougars	5097	⬇ 13	⬇ 9	⬇ 2				60.9	39.0
149	nmbarek_team	4957	⬇ 27	⬇ 2					99.7	0.3
150	teamMALI	4911	⬇ 3	⬇ 1					79.4	20.6
151	Hong Kong GIMP	4900	⬇ 1	⬇ 3					63.6	36.4
152	Danpi for GIMPS	4710	⬇ 4	⬇ 2	⬆ 1		100.0
153	zeit	4517	⬇ 10	⬇ 2	⬇ 1		2.4			97.6
154	México mágico	4194	⬆ 28	⬆ 10	⬆ 4				75.5	24.5
155	Crunching@EVGA	4104	⬆ 41	⬆ 5	⬆ 4				99.7	0.3
156	Olympic College	4082	⬇ 1	⬇ 1	⬇ 2					100.0
157	Kabylie	3786	⬇ 5	⬇ 1	⬇ 2		14.9	4.3	41.1	39.7
158	FactorMania	3584	⬆ 58	⬆ 8	⬇ 1			58.4			41.6
159	3DCenter.org	3452	⬇ 15	⬇ 5	⬇ 3						100.0
160	Korea.Prime	3376	⬆ 30	⬆ 12	⬆ 1				69.6	30.4
161	Noam Karni Team	3156	⬆ 28	⬆ 9	⬇ 1				75.1	24.9
162	GIMPS.Hong Kong	3016	⬇ 6	⬇ 1	⬆ 1		2.7		51.1	46.2
163	Team_Brazil	2999	⬆ 1	⬆ 2	⬆ 1		83.1	0.2		16.7
164	Phi Kappa Theta	2826	⬇ 4	⬇ 6	⬆ 1				55.9	44.1
165	I Love Canadian Natural Resources	2507	⬇ 6	⬆ 2	⬆ 1					100.0
166	Pi Rho	2499	⬆ 72	⬆ 2	⬆ 1				67.1	32.9
167	GIMPSMalaysia	2394	⬆ 24	⬆ 8	⬆ 2				66.8	33.2
168	VRS_SE	2359	⬆ 1	⬆ 3	⬆ 2				66.8	33.2
169	International School of Beijing (ISB)	2316	⬇ 30	⬇ 12	⬇ 7				99.3	0.7
170	TunisianTeam	2303	⬇ 12	⬇ 11	⬆ 1				33.6	66.4
171	Saudi Primes	2268	⬇ 6	⬆ 2	⬆ 1					100.0
172	GIMPS_KS	2194	⬆ 61	⬆ 2	⬆ 1				36.6	62.0	1.4
173	The Prime Pioneers	2122	⬆ 22	⬇ 4	⬇ 5		1.1	98.8
174	Obsidian	2082	⬆ 5	⬆ 5	⬆ 3	⬆ 3				100.0
175	Subprime Searches	2002	⬇ 7	⬆ 1	⬇ 1	⬇ 1	87.2			12.8
176	The Pensis	1869	⬇ 3	⬆ 1	⬇ 1	⬇ 1				100.0
177	F=dp/dt	1845	⬇ 3	⬆ 1	⬇ 1	⬇ 1			85.8	14.2
178	GIMPS_IOM	1712	⬇ 2	⬆ 2	⬆ 1		100.0
179	Zorin OS Crew	1712	⬇ 18	⬇ 16	⬇ 1				45.1	54.9
180	San Francisco	1586	⬇ 2	⬆ 3	⬆ 1				100.0
181	ANDY	1583	⬇ 32	⬆ 1	⬇ 1				98.7	1.3
182	cr_colorado	1549	⬆ 21	⬆ 3						100.0
183	CZAsTc	1447	⬆ 54	⬆ 5	⬆ 1				99.6	0.4
184	Optimists Prime	1369	⬇ 38	⬇ 31	⬇ 1			100.0
185	math.auth.gr	1355	⬆ 24	⬆ 4	⬆ 1				61.7	38.3
186	His Dark Materials	1334	⬇ 19	⬇ 5	⬇ 1					48.8	51.1
187	TimE4This	1266	⬇ 3							100.0
188	Czech National Team	1182	⬇ 26	⬆ 20	⬆ 1		3.2		70.1	24.2	1.5
189	Morocco	1062	⬆ 49	⬆ 4	⬆ 1					100.0
190	alan145	1036	⬇ 33	⬇ 6	⬇ 2		96.7	2.9		0.4
191	Therian Primes	925	⬆ 47	⬆ 23				15.9		57.0	27.1
192	Happy	807	⬇ 5	⬇ 2							100.0
193	AWC	801	⬆ 45	⬇ 1					100.0
194	GIMPS Asturias	794	⬆ 3						99.6	0.4
195	Weatopians	793	⬆ 3						99.7	0.3
196	Sæve Nordic Prime	781	⬆ 3						100.0
197	hreid	776	⬇ 14						100.0
198	ISISS Valle Seriana	758	⬆ 2	⬆ 4					99.9	0.1
199	Join Us 😈	708	⬆ 11	⬆ 4			100.0
200	SGDynamo Dresden	580	⬆ 4	⬆ 4			100.0
201	Arpan Sen Labs	544	⬆ 37	⬆ 29						100.0
202	PrimeObsession	539	⬆ 36	⬆ 3						100.0
203	London Computation Club	478	⬆ 10	⬆ 3						100.0
204	Team Dominik Radler	351	⬆ 4	⬆ 3	⬆ 1		100.0
205	/r/counting	337	⬆ 22	⬆ 4	⬆ 1
206	KnightLight	315	⬆ 9	⬆ 5	⬆ 1					99.3
207	Yurunago	276	⬆ 31	⬆ 23	⬆ 1					100.0
208	www.Adamek.biz	265	⬆ 10	⬆ 5	⬆ 1					100.0
209	Math Teachers of the World	259	⬆ 10	⬆ 6	⬆ 1				100.0
210	GIMPS Hams	253	⬆ 10	⬆ 7	⬆ 1			100.0
211	DividerHunt	221	⬆ 14	⬆ 8	⬆ 1		100.0
212	BrainStone	214	⬇ 49	⬇ 21	⬇ 8					100.0
213	Manri Costa Rica	213	⬇ 38	⬆ 7						100.0
214	30thousandwon	193	⬆ 10	⬆ 9						100.0
215	Team Bulgaria	190	⬇ 10	⬇ 5							99.9
216	miiro	150	⬆ 22	⬆ 14			100.0
217	GIMPS.Peace	122	⬆ 13	⬆ 7			44.7	55.3
218	TeamUbuntu	121	⬆ 11	⬆ 7						100.0
219	sannerud.com	108	⬆ 16	⬆ 10			43.1				19.4	37.5
220	FourthFloorFourEyes	31	⬆ 12	⬆ 7			100.0
221	PROMYS	23	⬆ 13	⬆ 7	⬆ 1						100.0
222	PARG team	21	⬆ 16	⬆ 8	⬆ 1						100.0
223	TeamEc	14	⬇ 16	⬆ 3	⬇ 2						100.0
224	Unteranger Primelurche	6	⬇ 18	⬇ 12						98.4
225	yfinder	1	⬇ 2	⬇ 4						100.0