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 2026-04-28 13:00 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	826332412					0.2		0.1		99.7
2	Slovakia	771363879					0.1	98.5	0.1		1.3
3	POLAND	210613365		⬆ 1	⬆ 1		0.5	97.7	0.3	0.1	1.5
4	-Too many Ones-	158022056	⬆ 1	⬆ 1	⬆ 1		0.1	90.4			9.4
5	PrimeNet	122332455	⬇ 1	⬇ 2	⬇ 2		0.2	98.0	0.7	1.0	0.1
6	Ars Technica Team Prime Rib	119794222	⬆ 1					99.1		0.8
7	unRAID	33331733	⬇ 1					99.7	0.3
8	GIMPSChina	21986380					69.0	20.3	4.0	0.6	6.1
9	One Man Team	13937487		⬆ 1				99.5	0.5
10	GW's legions	13181644	⬆ 1	⬆ 1				0.8	34.3	1.4	63.5
11	Team-Deutschland	13042372	⬆ 2	⬆ 1			2.7	37.4	0.6	0.1	59.1
12	szerverem.hu	11952191	⬆ 3	⬆ 2	⬆ 1	⬆ 1	3.6	28.2	61.3	3.1	3.8
13	UCM-curtisc	11790319	⬇ 1		⬇ 1	⬇ 1			99.3	0.7
14	More Power!!!	11028099	⬇ 4	⬇ 5			17.2	70.9	2.5	1.6	7.8
15	TeamUK	7112009	⬇ 1				47.5	3.5	19.1	1.4	28.3	0.1
16	Porta Kruse	6409697					2.0	0.4			91.3	6.1
17	GPU to 72	4741511					52.1	27.1	0.4	3.9	16.2
18	Numberphile	2750026	⬆ 1	⬆ 1			24.0	44.8	22.7	6.5	1.6
19	tsc	2648120	⬆ 2	⬆ 1			74.3	4.2	1.2	0.4	19.9
20	UW Eau Claire	2595304	⬆ 28	⬆ 3	⬆ 1		88.0		8.8	3.2
21	SpongeBob SquarePants	2411066	⬇ 3	⬇ 3	⬇ 1			31.1	58.8	10.1
22	UKRAINE	2197487		⬇ 1			20.4	11.1	53.3	15.1
23	Wikipedia	2033402		⬇ 1			59.9	32.7	4.2	2.1	0.8
24	Argentina	1746753	⬆ 206	⬆ 41	⬆ 5		93.2		6.8
25	Dutch Power Cows	1512662	⬇ 5	⬇ 1	⬇ 1		31.5	24.7	1.5	1.6	40.6
26	GIMPS.USA	1482768	⬇ 1	⬇ 1	⬇ 1		9.5	0.5	4.5	1.4	83.9
27	GIMPS.Japan	1323508	⬇ 1		⬇ 1		6.1		9.3	2.5	82.0
28	Swedes Of Primes	1299451	⬇ 4	⬇ 2	⬇ 1		0.5	80.8	15.9	2.8
29	GIMPS.Occitania	1206480	⬇ 2	⬇ 1	⬇ 1			4.4				95.6
30	GIMPS.Korea	955341	⬆ 3	⬇ 1			89.2	4.9	4.7	0.9	0.2
31	MBAi.Cloud	791839	⬇ 1	⬇ 1					99.9	0.1
32	MATHSareREAL	618101	⬇ 3	⬇ 1			96.1		2.7	1.2
33	citizenscience.ru	542809	⬆ 1				87.6	3.4	4.4	1.2	2.9	0.5
34	MOXA	476389	⬇ 6	⬇ 2			99.0		0.6	0.4
35	Buhr	465358					55.8	4.0	18.4	5.6	16.2
36	Rechenkraft.net	412363	⬇ 5	⬇ 2			2.4	55.8	4.4	5.6	31.9
37	Terry Kim Team	409713	⬇ 5	⬇ 1			96.7		2.4	0.7
38	S485122	307737	⬇ 2	⬇ 1				95.1		4.9
39	Colorado School of Mines	278414	⬆ 20				92.6		5.8	1.6
40	Smoke-it	265746	⬇ 3	⬇ 2			90.5	7.1	1.8
41	YahsTeam	222516	⬇ 3				88.3		9.9	1.8
42	404 - "Primes not Found"	221733	⬆ 10	⬆ 4	⬆ 1		86.6		13.2	0.2
43	randomteam	208173	⬆ 1	⬇ 3	⬇ 1						100.0
44	GIMPS Team Philippines	203098	⬇ 2	⬇ 2			62.9		6.6	1.8	25.8
45	NerdyGirls	201619	⬇ 6	⬇ 2				42.2	7.2	50.6
46	nranks	198857		⬇ 2			37.3	0.6	3.6	0.4	58.2
47	Canada	188056	⬇ 7	⬇ 2				2.5	68.3	29.0
48	Team Tartan	182609	⬇ 7	⬇ 1					77.2	22.8
49	OverclockerAustralia	151717	⬇ 2	⬇ 1			57.9		20.6	18.1
50	NanJing Tech	131135	⬆ 47	⬆ 11	⬆ 3		22.1		72.6	5.4
51	GIMPS.NZ	129320	⬇ 1	⬆ 1	⬇ 1		80.4		9.6	10.0
52	Team China	123294	⬇ 3	⬇ 1	⬇ 1				99.7	0.3
53	Unicamp	123240	⬆ 3		⬇ 1		70.3	0.1	24.9	4.7
54	GIMPS China	112001	⬇ 11	⬇ 5	⬆ 1		90.9		4.6		4.2
55	BitMEX Research	110510	⬇ 10	⬇ 5	⬇ 1				95.7	4.3
56	GIMPS.France	110455	⬆ 4	⬇ 1	⬆ 1		10.1	63.5	5.1	8.5	12.5
57	SASAKI	107855	⬇ 4	⬇ 3	⬇ 1		100.0
58	Wisconsin	96101	⬇ 4	⬇ 1			45.1		30.1	24.7
59	Cap'n Entropy's Cavalcade of Wonderment	89497	⬇ 8	⬇ 1	⬆ 1		74.6	6.0	17.0	2.4
60	AMD Users	86345	⬆ 11	⬆ 2	⬆ 1	⬆ 1	54.0	0.7	11.0	33.8	0.4
61	EgyptianPolymaths	85824	⬇ 6	⬇ 5	⬇ 2	⬇ 1		50.3			42.2
62	UIUC	84272	⬆ 4	⬇ 2					68.6	31.4
63	IOTA	82068	⬆ 84	⬆ 9	⬆ 1		96.0		2.0	2.0
64	SHADO	81661	⬇ 1	⬇ 5	⬇ 1				64.0	17.2	11.1	1.9
65	Net-Work	77197	⬇ 3	⬇ 2			4.2	1.9			86.7
66	Eratosthenes Sieve	76643	⬆ 1	⬇ 2			0.7		95.5	3.7
67	Esperanto	69338	⬇ 3	⬇ 1				25.3	6.9	67.6	0.2
68	Wile E. Coyote	69055	⬆ 10	⬆ 1					75.4	1.2	23.4
69	AJ	67059	⬆ 5	⬇ 1					75.6	24.4
70	Team_Italia	60569	⬆ 2		⬆ 1		2.8		71.1	20.2	2.1	3.2
71	S147127	60207	⬆ 4	⬆ 3	⬆ 3	⬆ 1	28.3		16.2	55.5
72	ParadoxZ Commando	59961	⬆ 1	⬇ 1		⬇ 1			73.6	26.4
73	Team Israel	58223	⬇ 3				96.8		2.7	0.5
74	Hungary	53137	⬇ 16	⬇ 7	⬇ 4		0.3		3.1	2.4	93.7
75	Brno University of Technology	50895	⬇ 7	⬆ 1	⬆ 1			13.5	69.5	17.0
76	ComputerraRU	50872	⬆ 1	⬆ 1	⬆ 1		20.2		70.5	9.3
77	GIMPS.NEO	50233	⬇ 8	⬇ 2	⬇ 2				78.9	21.1
78	Team Belgium	47210	⬇ 2				1.1	7.4	34.8	17.2	39.4
79	GIMPS.Portugal	43780	⬆ 31	⬆ 27	⬆ 3		35.3	51.4		13.3
80	Team Viet Nam	42563	⬇ 1		⬇ 1		28.7		31.3	29.1	10.9
81	HardOCP	36720	⬆ 5	⬆ 1	⬇ 1				74.4	25.6
82	LTT fans	36551	⬇ 17	⬇ 3	⬆ 1		22.9		2.1		75.0
83	Debian	36460	⬆ 4	⬆ 1	⬇ 2				98.5	1.5
84	Turku	36285	⬆ 25	⬇ 3					100.0
85	huskers-gimps	35130	⬆ 3						73.9	26.1
86	Team H	34764	⬇ 2				12.8		86.6	0.6
87	VIPR	33198	⬆ 29	⬆ 5	⬆ 1		73.7		16.6	9.6
88	Hermessz	31771	⬇ 3	⬇ 1	⬇ 1		65.5		34.5
89	ᕙ(⇀‸↼‶)ᕗ	30349	⬆ 3	⬆ 2			0.7		98.9	0.4
90	Small-Team-2000	29644	⬇ 1						10.6	89.4
91	socal_prime	28408	⬇ 8	⬇ 2					71.3	28.5	0.1
92	MES-Team	25948	⬇ 11	⬇ 4			71.3	7.3		21.4
93	Channel 4	25876	⬆ 3	⬆ 2					82.6	17.4
94	The Fellowship of Infinity	24588	⬆ 4		⬆ 2				99.5	0.5
95	Team Austria	23673	⬇ 15	⬇ 12	⬇ 1		91.9	0.9	7.2
96	Costa Rica	23025	⬇ 6		⬇ 1				74.3	25.3
97	MurrayInfoSys	21206	⬆ 10						67.1	32.9
98	Team Retired	19281	⬇ 5		⬆ 1				28.4	11.0
99	A Single Engineer	18871		⬆ 1	⬆ 2				74.0	26.0
100	LimePrime	18866	⬇ 18	⬇ 7	⬇ 2			7.5	82.8	9.7
101	PrimitiveRootsCircle	17927	⬇ 6	⬇ 2	⬇ 1		20.2		48.5	28.6	2.7
102	Georgia Tech	17112	⬇ 45	⬆ 11	⬆ 1				100.0
103	SpartaAlumni	16838	⬇ 2	⬇ 2	⬇ 1				69.5	30.5
104	GIMPS Romania	16014	⬆ 41	⬆ 40			67.0		29.7	3.3
105	Spain	14423	⬆ 3						64.9	35.1
106	SETI.Germany	14419	⬆ 11	⬆ 2				6.6	22.0	71.4
107	Ozzie Prime	14319	⬇ 4	⬇ 5				3.9	38.5	16.9		40.6
108	NUST	14223	⬆ 15	⬆ 1			16.4	74.6	5.9	3.0
109	Aiblspitz	14171	⬆ 24	⬆ 7	⬆ 3	⬆ 1	1.2	75.5	11.1	11.0	1.2
110	Nerdfighters for Mersenne Primes	14100	⬇ 6	⬇ 7	⬆ 1	⬇ 1			88.7	11.3
111	Team Finland	13648	⬇ 50		⬇ 1		0.9		97.1		2.0
112	Portland State University	13626	⬇ 12	⬇ 2	⬇ 3			33.3	52.8	13.8
113	moeses	13372	⬇ 2	⬆ 1	⬆ 3				99.1	0.8
114	Team Norway	12928	⬇ 20	⬇ 10	⬇ 1		80.9			3.9	15.0
115	Quantus	12418	⬇ 13	⬇ 8	⬇ 1		9.8		12.7	26.6		50.9
116	Com Systems (RU)	12117	⬆ 21	⬆ 7	⬆ 1				64.3	35.7
117	Team Slovenia	11908	⬇ 12	⬇ 2	⬇ 2				71.9	28.1
118	MadPoo	11152	⬇ 27	⬇ 1				42.1		57.9
119	RobotechResearch	11032	⬆ 66	⬆ 7	⬆ 8	⬆ 3			50.9	49.1
120	FREE ROBUX	10852	⬆ 1		⬇ 1	⬇ 1			100.0
121	Royal Military College of Canada	10691	⬆ 1	⬆ 1	⬇ 1	⬇ 1	89.7		7.9	2.4
122	GIMPS.Taiwan	10072	⬇ 16	⬇ 3	⬆ 2	⬆ 2			86.7	12.7	0.1
123	Granada	10035	⬇ 9	⬇ 2			30.5		15.6	53.1
124	Politeknik Banting, Selangor	9990	⬇ 12	⬇ 6	⬇ 2	⬆ 1	89.3		7.9	2.8
125	Syntony	9769	⬆ 3			⬆ 1				100.0
126	Mensa	9693	⬇ 7	⬇ 14	⬇ 5	⬇ 5			89.1	10.9
127	JiBoTeam	9637		⬆ 3	⬆ 1	⬆ 1				100.0
128	TurkishMath	9477	⬆ 3	⬆ 4	⬇ 2	⬇ 1			83.7	16.3
129	Shaffer's Studio	8871			⬆ 1				87.6	12.3
130	Triangle	8632		⬆ 5	⬆ 4				99.1	0.9
131	Die Zeitfinder	8558	⬇ 7	⬇ 4	⬇ 2				90.9	9.1
132	Abacus	7921	⬇ 12	⬆ 2					98.9	1.1
133	math.auth.gr	7704	⬆ 61	⬆ 52	⬆ 2	⬆ 1			100.0
134	Team Splunk	7605	⬆ 1	⬆ 2	⬆ 2	⬆ 1		28.1	71.9
135	Hyperion	7525	⬇ 22	⬇ 4	⬇ 2	⬇ 2				22.0
136	University of Waterloo	7519	⬆ 6	⬆ 1	⬆ 1				100.0
137	Server66	7322	⬇ 5	⬇ 13	⬆ 2		100.0
138	FreeBSD	7242	⬇ 12	⬇ 10	⬇ 7				76.1	23.9
139	irowiki	6823	⬇ 3	⬇ 1	⬆ 2					100.0
140	Prime Rib	6563		⬆ 1	⬇ 2				96.4	3.6
141	SU Prime Pirates	6437		⬆ 1	⬆ 1				61.5	38.5
142	Team Christensen	6058	⬆ 1	⬆ 1	⬆ 1	⬆ 1				100.0
143	Brasil	5947	⬇ 5	⬇ 3	⬇ 3	⬇ 1			79.0	20.9
144	Elisabeth-von-Thadden-Schule	5505		⬆ 1					42.1	57.9
145	FactorMania	5317	⬆ 19	⬆ 11	⬆ 5			58.0			42.0
146	youngfun429	5187	⬇ 28	⬇ 7	⬇ 1				59.5	40.5
147	MES22-Team	5150	⬇ 32	⬇ 14	⬇ 1		100.0
148	nmbarek_team	4952	⬇ 23		⬇ 1				99.8	0.2
149	Crunching@EVGA	4888	⬆ 35	⬆ 6	⬇ 1				99.7	0.3
150	Danpi for GIMPS	4710	⬆ 1	⬆ 1	⬆ 2	⬆ 1	100.0
151	Furry Primes	4702	⬇ 17	⬇ 5	⬇ 2	⬇ 1	75.9			24.1
152	Hong Kong GIMP	4698		⬇ 3	⬆ 1				66.6	33.4
153	The_Dude_Abides	4534	⬇ 5	⬇ 3	⬇ 2		31.9			58.6
154	teamMALI	4384	⬇ 5	⬇ 7					71.2	28.8
155	México mágico	4208	⬆ 11	⬇ 1					75.3	24.7
156	Olympic College	4079	⬆ 2	⬇ 4						100.0
157	Noam Karni Team	3962	⬆ 15		⬆ 1				79.7	20.3
158	zeit	3810	⬇ 8	⬇ 5	⬇ 1		2.0			98.0
159	Phi Kappa Theta	3650		⬆ 5					66.2	33.8
160	Korea.Prime	3645	⬆ 14						64.5	35.5
161	GIMPS.Hong Kong	3622	⬇ 1	⬇ 2			1.6		65.7	32.7
162	Kabylie	3201	⬇ 5	⬇ 4			16.2	3.6	48.7	31.5
163	Team_Brazil	2999					83.1	0.2		16.7
164	Arpan Sen Labs	2915	⬆ 66	⬆ 9					43.5	56.4
165	KnightLight	2786	⬆ 48	⬆ 39						99.9
166	Pi Rho	2499	⬆ 27		⬆ 2				67.1	32.9
167	Morocco	2438	⬆ 42	⬆ 21	⬆ 6	⬆ 4			34.5	65.5
168	GIMPSMalaysia	2394	⬆ 8	⬇ 1	⬆ 1				66.8	33.2
169	3DCenter.org	2382	⬇ 15	⬇ 7	⬇ 3	⬇ 2					100.0
170	VRS_SE	2364	⬆ 3	⬇ 2		⬇ 1			66.7	33.3
171	GIMPS_KS	2199	⬆ 6	⬇ 1	⬆ 1	⬇ 1			36.5	62.0	1.4
172	I Love Canadian Natural Resources	2012	⬇ 7	⬇ 7	⬇ 5	⬆ 1				100.0
173	Obsidian	1963	⬆ 8	⬇ 2	⬆ 4	⬆ 3				100.0
174	The Prime Pioneers	1919	⬇ 3	⬆ 1				100.0
175	The Pensis	1869	⬆ 4	⬆ 1						100.0
176	GIMPS_IOM	1689	⬆ 6	⬆ 2		⬆ 1	100.0
177	YESHUA IS THE MESSIAH	1659	⬆ 53	⬆ 44	⬆ 1	⬆ 1			99.0	1.0
178	Subprime Searches	1614	⬇ 10	⬇ 4	⬆ 1	⬆ 1	84.2			15.8
179	F=dp/dt	1589	⬆ 1	⬇ 2	⬆ 1	⬆ 1			99.6	0.4
180	San Francisco	1586	⬆ 6	⬇ 1	⬆ 1	⬆ 1			100.0
181	hreid	1575	⬆ 20	⬆ 16	⬆ 1	⬆ 1			100.0
182	cr_colorado	1549	⬆ 5	⬇ 1	⬆ 1	⬆ 1				100.0
183	Zorin OS Crew	1469	⬇ 21		⬆ 1	⬆ 1			52.5	47.5
184	CZAsTc	1448	⬆ 7		⬆ 1	⬆ 1			99.5	0.4
185	WSU Cougars	1390	⬇ 46	⬇ 24	⬇ 14	⬇ 13			55.3	44.6
186	TunisianTeam	1031	⬇ 25	⬇ 14					75.0	25.0
187	Therian Primes	1007	⬆ 29	⬆ 2				14.6		52.4	33.0
188	His Dark Materials	977	⬇ 5	⬇ 1						44.7	55.3
189	Czech National Team	906	⬆ 15	⬇ 3			4.1		91.4	1.2	2.0
190	TimE4This	876	⬇ 1	⬆ 2						100.0
191	AWC	801	⬆ 39	⬆ 2					100.0
192	GIMPS Asturias	794	⬆ 5	⬆ 2					99.6	0.4
193	Weatopians	793	⬆ 5	⬆ 2					99.7	0.3
194	International School of Beijing (ISB)	773	⬇ 41	⬇ 12					99.3	0.7
195	Saudi Primes	757	⬇ 20	⬇ 26						100.0
196	Optimists Prime	727	⬇ 50	⬇ 6				100.0
197	Join Us 😈	708	⬆ 8	⬆ 1			100.0
198	SGDynamo Dresden	565	⬆ 9	⬆ 1	⬆ 1		100.0
199	PrimeObsession	539	⬆ 9	⬆ 1	⬆ 1					100.0
200	alan145	504	⬇ 22	⬇ 9	⬇ 2		100.0
201	London Computation Club	478	⬆ 9							100.0
202	Team Dominik Radler	290	⬆ 9				100.0
203	Yurunago	276	⬆ 27	⬆ 2						100.0
204	Vegan	275	⬆ 26	⬆ 17						100.0
205	Byberg Nordic Prime	265	⬇ 5	⬇ 9						100.0
206	www.Adamek.biz	265	⬆ 9							100.0
207	Math Teachers of the World	259	⬆ 10		⬆ 1				100.0
208	GIMPS Hams	253	⬆ 10		⬆ 1			100.0
209	DividerHunt	221	⬆ 11		⬆ 1		100.0
210	Manri Costa Rica	213	⬇ 14		⬆ 1					100.0
211	30thousandwon	193	⬆ 12		⬆ 1					100.0
212	/r/counting	184		⬇ 9	⬇ 5
213	miiro	150	⬆ 17		⬆ 1		100.0
214	Team Bulgaria	137	⬇ 8	⬇ 2	⬇ 1						100.0
215	GIMPS.Peace	122	⬆ 9	⬇ 1			44.7	55.3
216	TeamUbuntu	121	⬆ 9	⬇ 1						100.0
217	sannerud.com	108	⬆ 12	⬇ 1			43.1				19.4	37.5
218	PROMYS	23	⬆ 10	⬇ 1							100.0
219	PARG team	21	⬆ 11	⬇ 1							100.0
220	ANDY	9	⬇ 65	⬇ 40						98.4
221	yfinder	1		⬇ 1						100.0