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1-digit prime factors: 2

2-digit prime factors: 4

3-digit prime factors: 10

4-digit prime factors: 8

5-digit prime factors: 18

6-digit prime factors: 11

7-digit prime factors: 20

8-digit prime factors: 16

9-digit prime factors: 25

10-digit prime factors: 23

11-digit prime factors: 31

12-digit prime factors: 33

13-digit prime factors: 26

14-digit prime factors: 37

15-digit prime factors: 32

16-digit prime factors: 22

17-digit prime factors: 30

18-digit prime factors: 30

19-digit prime factors: 30

20-digit prime factors: 39

21-digit prime factors: 31

22-digit prime factors: 29

23-digit prime factors: 24

24-digit prime factors: 29

25-digit prime factors: 27

26-digit prime factors: 39

27-digit prime factors: 27

28-digit prime factors: 30

29-digit prime factors: 28

30-digit prime factors: 25

31-digit prime factors: 30

32-digit prime factors: 36

33-digit prime factors: 26

34-digit prime factors: 31

35-digit prime factors: 43

36-digit prime factors: 41

37-digit prime factors: 35

38-digit prime factors: 32

39-digit prime factors: 30

40-digit prime factors: 32

41-digit prime factors: 35

42-digit prime factors: 33

43-digit prime factors: 39

44-digit prime factors: 35

45-digit prime factors: 33

46-digit prime factors: 31

47-digit prime factors: 15

48-digit prime factors: 25

49-digit prime factors: 39

50-digit prime factors: 28

51-digit prime factors: 22

52-digit prime factors: 22

53-digit prime factors: 29

54-digit prime factors: 17

55-digit prime factors: 21

56-digit prime factors: 22

57-digit prime factors: 18

58-digit prime factors: 32

59-digit prime factors: 21

60-digit prime factors: 25

61-digit prime factors: 24

62-digit prime factors: 34

63-digit prime factors: 25

64-digit prime factors: 26

65-digit prime factors: 42

66-digit prime factors: 27

67-digit prime factors: 25

68-digit prime factors: 32

69-digit prime factors: 21

70-digit prime factors: 20

71-digit prime factors: 26

72-digit prime factors: 26

73-digit prime factors: 28

74-digit prime factors: 24

75-digit prime factors: 23

76-digit prime factors: 19

77-digit prime factors: 23

78-digit prime factors: 24

79-digit prime factors: 29

80-digit prime factors: 20

81-digit prime factors: 18

82-digit prime factors: 30

83-digit prime factors: 22

84-digit prime factors: 31

85-digit prime factors: 27

86-digit prime factors: 18

87-digit prime factors: 19

88-digit prime factors: 18

89-digit prime factors: 15

90-digit prime factors: 15

91-digit prime factors: 17

92-digit prime factors: 16

93-digit prime factors: 24

94-digit prime factors: 17

95-digit prime factors: 23

96-digit prime factors: 15

97-digit prime factors: 17

98-digit prime factors: 17

99-digit prime factors: 18

100-digit prime factors: 12

101-digit prime factors: 18

102-digit prime factors: 14

103-digit prime factors: 23

104-digit prime factors: 15

105-digit prime factors: 22

106-digit prime factors: 14

107-digit prime factors: 16

108-digit prime factors: 15

109-digit prime factors: 19

110-digit prime factors: 20

111-digit prime factors: 14

112-digit prime factors: 24

113-digit prime factors: 19

114-digit prime factors: 14

115-digit prime factors: 12

116-digit prime factors: 21

117-digit prime factors: 20

118-digit prime factors: 14

119-digit prime factors: 9

120-digit prime factors: 14

121-digit prime factors: 19

122-digit prime factors: 20

123-digit prime factors: 11

124-digit prime factors: 12

125-digit prime factors: 18

126-digit prime factors: 13

127-digit prime factors: 22

128-digit prime factors: 18

129-digit prime factors: 23

130-digit prime factors: 22

131-digit prime factors: 16

132-digit prime factors: 14

133-digit prime factors: 15

134-digit prime factors: 18

135-digit prime factors: 18

136-digit prime factors: 20

137-digit prime factors: 13

138-digit prime factors: 21

139-digit prime factors: 14

140-digit prime factors: 26

141-digit prime factors: 15

142-digit prime factors: 15

143-digit prime factors: 9

144-digit prime factors: 17

145-digit prime factors: 16

146-digit prime factors: 20

147-digit prime factors: 18

148-digit prime factors: 19

149-digit prime factors: 16

150-digit prime factors: 20

151-digit prime factors: 15

152-digit prime factors: 14

153-digit prime factors: 25

154-digit prime factors: 14

155-digit prime factors: 15

156-digit prime factors: 15

157-digit prime factors: 13

158-digit prime factors: 17

159-digit prime factors: 18

160-digit prime factors: 20

161-digit prime factors: 19

162-digit prime factors: 19

163-digit prime factors: 15

164-digit prime factors: 12

165-digit prime factors: 14

166-digit prime factors: 16

167-digit prime factors: 20

168-digit prime factors: 18

169-digit prime factors: 24

170-digit prime factors: 12

171-digit prime factors: 19

172-digit prime factors: 15

173-digit prime factors: 12

174-digit prime factors: 22

175-digit prime factors: 12

176-digit prime factors: 18

177-digit prime factors: 22

178-digit prime factors: 14

179-digit prime factors: 22

180-digit prime factors: 19

181-digit prime factors: 15

182-digit prime factors: 8

183-digit prime factors: 17

184-digit prime factors: 19

185-digit prime factors: 16

186-digit prime factors: 17

187-digit prime factors: 11

188-digit prime factors: 21

189-digit prime factors: 16

190-digit prime factors: 13

191-digit prime factors: 20

192-digit prime factors: 23

193-digit prime factors: 15

194-digit prime factors: 10

195-digit prime factors: 24

196-digit prime factors: 16

197-digit prime factors: 13

198-digit prime factors: 16

199-digit prime factors: 16

200-digit prime factors: 8

201-digit prime factors: 12

202-digit prime factors: 15

203-digit prime factors: 16

204-digit prime factors: 19

205-digit prime factors: 13

206-digit prime factors: 12

207-digit prime factors: 17

208-digit prime factors: 15

209-digit prime factors: 6

210-digit prime factors: 19

211-digit prime factors: 12

212-digit prime factors: 11

213-digit prime factors: 12

214-digit prime factors: 18

215-digit prime factors: 12

216-digit prime factors: 10

217-digit prime factors: 13

218-digit prime factors: 12

219-digit prime factors: 19

220-digit prime factors: 10

221-digit prime factors: 15

222-digit prime factors: 10

223-digit prime factors: 12

224-digit prime factors: 18

225-digit prime factors: 18

226-digit prime factors: 11

227-digit prime factors: 18

228-digit prime factors: 11

229-digit prime factors: 6

230-digit prime factors: 15

231-digit prime factors: 14

232-digit prime factors: 21

233-digit prime factors: 9

234-digit prime factors: 11

235-digit prime factors: 13

236-digit prime factors: 13

237-digit prime factors: 4

238-digit prime factors: 11

239-digit prime factors: 6

240-digit prime factors: 13

241-digit prime factors: 10

242-digit prime factors: 7

243-digit prime factors: 6

244-digit prime factors: 8

245-digit prime factors: 14

246-digit prime factors: 8

247-digit prime factors: 10

248-digit prime factors: 8

249-digit prime factors: 12

250-digit prime factors: 5

251-digit prime factors: 5

252-digit prime factors: 12

253-digit prime factors: 11

254-digit prime factors: 9

255-digit prime factors: 5

256-digit prime factors: 8

257-digit prime factors: 12

258-digit prime factors: 13

259-digit prime factors: 11

260-digit prime factors: 9

261-digit prime factors: 7

262-digit prime factors: 11

263-digit prime factors: 10

264-digit prime factors: 9

265-digit prime factors: 11

266-digit prime factors: 8

267-digit prime factors: 6

268-digit prime factors: 9

269-digit prime factors: 8

270-digit prime factors: 12

271-digit prime factors: 12

272-digit prime factors: 13

273-digit prime factors: 7

274-digit prime factors: 2

275-digit prime factors: 10

276-digit prime factors: 11

277-digit prime factors: 8

278-digit prime factors: 6

279-digit prime factors: 4

280-digit prime factors: 4

281-digit prime factors: 12

282-digit prime factors: 6

283-digit prime factors: 3

284-digit prime factors: 5

285-digit prime factors: 2

286-digit prime factors: 2

287-digit prime factors: 4

288-digit prime factors: 6

289-digit prime factors: 4

290-digit prime factors: 5

291-digit prime factors: 6

292-digit prime factors: 6

293-digit prime factors: 3

294-digit prime factors: 6

295-digit prime factors: 4

296-digit prime factors: 5

297-digit prime factors: 7

298-digit prime factors: 3

299-digit prime factors: 8

300-digit prime factors: 13

301-digit prime factors: 5

302-digit prime factors: 4

303-digit prime factors: 5

304-digit prime factors: 3

305-digit prime factors: 6

306-digit prime factors: 9

307-digit prime factors: 1

308-digit prime factors: 7

309-digit prime factors: 6

310-digit prime factors: 10

311-digit prime factors: 6

312-digit prime factors: 7

313-digit prime factors: 6

314-digit prime factors: 3

315-digit prime factors: 2

316-digit prime factors: 6

317-digit prime factors: 3

318-digit prime factors: 4

319-digit prime factors: 7

320-digit prime factors: 6

321-digit prime factors: 6

322-digit prime factors: 1

323-digit prime factors: 6

324-digit prime factors: 3

325-digit prime factors: 7

326-digit prime factors: 2

327-digit prime factors: 5

328-digit prime factors: 2

329-digit prime factors: 2

330-digit prime factors: 8

331-digit prime factors: 4

332-digit prime factors: 3

333-digit prime factors: 2

334-digit prime factors: 2

335-digit prime factors: 5

336-digit prime factors: 5

337-digit prime factors: 2

338-digit prime factors: 1

339-digit prime factors: 5

340-digit prime factors: 5

341-digit prime factors: 1

342-digit prime factors: 6

343-digit prime factors: 3

344-digit prime factors: 4

345-digit prime factors: 2

346-digit prime factors: 5

347-digit prime factors: 4

348-digit prime factors: 4

349-digit prime factors: 6

351-digit prime factors: 3

352-digit prime factors: 2

354-digit prime factors: 4

355-digit prime factors: 3

356-digit prime factors: 3

357-digit prime factors: 4

358-digit prime factors: 3

359-digit prime factors: 3

360-digit prime factors: 2

361-digit prime factors: 1

362-digit prime factors: 3

363-digit prime factors: 4

364-digit prime factors: 4

365-digit prime factors: 4

366-digit prime factors: 2

367-digit prime factors: 2

368-digit prime factors: 1

369-digit prime factors: 1

370-digit prime factors: 4

371-digit prime factors: 1

372-digit prime factors: 3

374-digit prime factors: 1

375-digit prime factors: 2

379-digit prime factors: 2

380-digit prime factors: 1

381-digit prime factors: 2

382-digit prime factors: 2

383-digit prime factors: 2

385-digit prime factors: 4

389-digit prime factors: 1

394-digit prime factors: 2

397-digit prime factors: 2

399-digit prime factors: 1

400-digit prime factors: 1

403-digit prime factors: 1

413-digit prime factors: 1

Number of known prime numbers: 5482 (713016 digits)

Perl script written by Dario Alejandro Alpern. Last updated on May 5th, 2016.