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Repunit (factors)
This table contains the integer factorization of the repunit numbers R1 to R50.
| Repunit | Prime factors | Num Factors |
| R1 | 1 | 1 |
| R2 | Prime | 1 |
| R3 | 3 37 | 2 |
| R4 | 11 101 | 2 |
| R5 | 41 271 | 2 |
| R6 | 3 7 11 13 37 | 5 |
| R7 | 239 4,649 | 2 |
| R8 | 11 73 101 137 | 4 |
| R9 | 32 37 333,667 | 4 |
| R10 | 11 41 271 9,091 | 4 |
| R11 | 21,649 513,239 | 2 |
| R12 | 3 7 11 13 37 101 9,901 | 7 |
| R13 | 53 79 265,371,653 | 3 |
| R14 | 11 239 4,649 909,091 | 4 |
| R15 | 3 31 37 41 271 2,906,161 | 6 |
| R16 | 11 17 73 101 137 5,882,353 | 6 |
| R17 | 2,071,723 5,363,222,357 | 2 |
| R18 | 32 7 11 13 19 37 52,579 333,667 | 9 |
| R19 | Prime | 1 |
| R20 | 11 41 101 271 3,541 9,091 27,961 | 7 |
| R21 | 3 37 43 239 1,933 4,649 10,838,689 | 7 |
| R22 | 112 23 4,093 8,779 21,649 513,239 | 7 |
| R23 | Prime | 1 |
| R24 | 3 7 11 13 37 73 101 137 9,901 99,990,001 | 10 |
| R25 | 41 271 21,401 25,601 182,521,213,001 | 5 |
| R26 | 11 53 79 859 265,371,653 1,058,313,049 | 6 |
| R27 | 33 37 757 333,667 440,334,654,777,631 | 7 |
| R28 | 11 29 101 239 281 4,649 909,091 121,499,449 | 8 |
| R29 | 3,191 16,763 43,037 62,003 77,843,839,397 | 5 |
| R30 | 3 7 11 13 31 37 41 211 241 271 2,161 9,091 2,906,161 | 13 |
| R31 | 2,791 6,943,319 57,336,415,063,790,604,359 | 3 |
| R32 | 11 17 73 101 137 353 449 641 1,409 69,857 5,882,353 | 11 |
| R33 | 3 37 67 21,649 513,239 1,344,628,210,313,298,373 | 6 |
| R34 | 11 103 4,013 2,071,723 5,363,222,357 21,993,833,369 | 6 |
| R35 | 41 71 239 271 4,649 123,551 102,598,800,232,111,471 | 7 |
| R36 | 32 7 11 13 19 37 101 9,901 52,579 333,667 999,999,000,001 | 12 |
| R37 | 2,028,119 247,629,013 2,212,394,296,770,203,368,013 | 3 |
| R38 | 11 909,090,909,090,909,091 R19 | 3 |
| R39 | 3 37 53 79 265,371,653 900,900,900,900,990,990,990,991 | 6 |
| R40 | 11 41 73 101 137 271 3,541 9,091 27,961 1,676,321 5,964,848,081 | 11 |
| R41 | 83 1,231 538,987 201,763,709,900,322,803,748,657,942,361 | 4 |
| R42 | 3 72 11 13 37 43 127 239 1,933 2,689 4,649 459,691 909,091 10,838,689 | 15 |
| R43 | 173 1,527,791 1,963,506,722,254,397 2,140,992,015,395,526,641 | 4 |
| R44 | 112 23 89 101 4,093 8,779 21,649 513,239 1,052,788,969 1,056,689,261 | 11 |
| R45 | 32 31 37 41 271 238,681 333,667 2,906,161 4,185,502,830,133,110,721 | 10 |
| R46 | 11 47 139 2,531 549,797,184,491,917 R23 | 6 |
| R47 | 35,121,409 316,362,908,763,458,525,001,406,154,038,726,382,279 | 2 |
| R48 | 3 7 11 13 17 37 73 101 137 9,901 5,882,353 99,990,001 9,999,999,900,000,001 | 13 |
| R49 | 239 4,649 505,885,997 1,976,730,144,598,190,963,568,023,014,679,333 | 4 |
| R50 | 11 41 251 271 5,051 9,091 21,401 25,601 182,521,213,001 78,875,943,472,201 | 10 |
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