Compare 1553 vs 1601
| Property | 1553 | 1601 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15531 | 16011 |
| Prime factorization | 1553 | 1601 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1553 | 1, 1601 |
| Number of properties | 8 | 12 |
| Chen primes | 156th | 160th |
| Cousin primes (2nd member) | 54th | 57th |
| Emirps | 78th | |
| Harmonic primes | 85th | |
| Isolated primes | 146th | 153rd |
| Long primes | 94th | |
| Primes | 245th | 252nd |
| Proth primes | 21st | |
| Pythagorean primes | 118th | 120th |
| Sexy primes (1st member) | 107th | 108th |
| Sexy prime quadrupletss (1st member) | 10th | |
| Sexy prime triplets (1st member) | 41st | |
| Sophie germain primes | 54th | |
| Ulam primes | 23rd | |
| Roman numberals | MDLIII | MDCI |
| Base 2 | 110000100012 | 110010000012 |
| Base 3 | 20101123 | 20120223 |
| Base 4 | 1201014 | 1210014 |
| Base 5 | 222035 | 224015 |
| Base 6 | 111056 | 112256 |
| Base 7 | 43467 | 44457 |
| Base 8 | 30218 | 31018 |
| Base 9 | 21159 | 21689 |
| Base 10 | 155310 | 160110 |
| Base 11 | 119211 | 122611 |
| Base 12 | a9512 | b1512 |
| Base 13 | 92613 | 96213 |
| Base 14 | 7cd14 | 82514 |
| Base 15 | 6d815 | 71b15 |
| Base 16 | 61116 | 64116 |