Compare 1541 vs 1553
| Property | 1541 | 1553 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 231 × 671 | 15531 |
| Prime factorization | 23 × 67 | 1553 |
| Divisors count | 4 | 2 |
| Divisors | 1, 23, 67, 1541 | 1, 1553 |
| Number of properties | 1 | 8 |
| Chen primes | 156th | |
| Cousin primes (2nd member) | 54th | |
| Isolated primes | 146th | |
| Long primes | 94th | |
| Primes | 245th | |
| Pythagorean primes | 118th | |
| Semiprimes | 450th | |
| Sexy primes (1st member) | 107th | |
| Ulam primes | 23rd | |
| Roman numberals | MDXLI | MDLIII |
| Base 2 | 110000001012 | 110000100012 |
| Base 3 | 20100023 | 20101123 |
| Base 4 | 1200114 | 1201014 |
| Base 5 | 221315 | 222035 |
| Base 6 | 110456 | 111056 |
| Base 7 | 43317 | 43467 |
| Base 8 | 30058 | 30218 |
| Base 9 | 21029 | 21159 |
| Base 10 | 154110 | 155310 |
| Base 11 | 118111 | 119211 |
| Base 12 | a8512 | a9512 |
| Base 13 | 91713 | 92613 |
| Base 14 | 7c114 | 7cd14 |
| Base 15 | 6cb15 | 6d815 |
| Base 16 | 60516 | 61116 |