Compare 1951 vs 1953
| Property | 1951 | 1953 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 19511 | 32 × 71 × 311 |
| Prime factorization | 1951 | 3 × 3 × 7 × 31 |
| Divisors count | 2 | 12 |
| Divisors | 1, 1951 | 1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953 |
| Number of properties | 3 | 0 |
| Cuban primes 1 | 14th | |
| Primes | 297th | |
| Twin primes (2nd member) | 60th | |
| Roman numberals | MCMLI | MCMLIII |
| Base 2 | 111100111112 | 111101000012 |
| Base 3 | 22000213 | 22001003 |
| Base 4 | 1321334 | 1322014 |
| Base 5 | 303015 | 303035 |
| Base 6 | 130116 | 130136 |
| Base 7 | 54557 | 54607 |
| Base 8 | 36378 | 36418 |
| Base 9 | 26079 | 26109 |
| Base 10 | 195110 | 195310 |
| Base 11 | 151411 | 151611 |
| Base 12 | 116712 | 116912 |
| Base 13 | b7113 | b7313 |
| Base 14 | 9d514 | 9d714 |
| Base 15 | 8a115 | 8a315 |
| Base 16 | 79f16 | 7a116 |