Compare 1551 vs 1553
| Property | 1551 | 1553 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 111 × 471 | 15531 |
| Prime factorization | 3 × 11 × 47 | 1553 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 11, 33, 47, 141, 517, 1551 | 1, 1553 |
| Number of properties | 0 | 8 |
| Chen primes | 156th | |
| Cousin primes (2nd member) | 54th | |
| Isolated primes | 146th | |
| Long primes | 94th | |
| Primes | 245th | |
| Pythagorean primes | 118th | |
| Sexy primes (1st member) | 107th | |
| Ulam primes | 23rd | |
| Roman numberals | MDLI | MDLIII |
| Base 2 | 110000011112 | 110000100012 |
| Base 3 | 20101103 | 20101123 |
| Base 4 | 1200334 | 1201014 |
| Base 5 | 222015 | 222035 |
| Base 6 | 111036 | 111056 |
| Base 7 | 43447 | 43467 |
| Base 8 | 30178 | 30218 |
| Base 9 | 21139 | 21159 |
| Base 10 | 155110 | 155310 |
| Base 11 | 119011 | 119211 |
| Base 12 | a9312 | a9512 |
| Base 13 | 92413 | 92613 |
| Base 14 | 7cb14 | 7cd14 |
| Base 15 | 6d615 | 6d815 |
| Base 16 | 60f16 | 61116 |