Compare 641 vs 1091
| Property | 641 | 1091 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6411 | 10911 |
| Prime factorization | 641 | 1091 |
| Divisors count | 2 | 2 |
| Divisors | 1, 641 | 1, 1091 |
| Number of properties | 14 | 13 |
| Additive primes | 62nd | 96th |
| Chen primes | 81st | 122nd |
| Cousin primes (2nd member) | 43rd | |
| Emirps | 43rd | |
| Good primes | 35th | |
| Harmonic primes | 65th | |
| Long primes | 68th | |
| Primes | 116th | 182nd |
| Prime triplets (1st member) | 24th | 32nd |
| Prime triplets (2nd member) | 31st | |
| Proth primes | 14th | |
| Pythagorean primes | 55th | |
| Quartan primes | 6th | |
| Sexy primes (1st member) | 57th | 79th |
| Sexy prime quadrupletss (1st member) | 7th | 8th |
| Sexy prime triplets (1st member) | 24th | 29th |
| Solinas primes | 41st | |
| Sophie germain primes | 28th | |
| Twin primes (1st member) | 29th | 40th |
| Roman numberals | DCXLI | MXCI |
| Base 2 | 10100000012 | 100010000112 |
| Base 3 | 2122023 | 11111023 |
| Base 4 | 220014 | 1010034 |
| Base 5 | 100315 | 133315 |
| Base 6 | 25456 | 50156 |
| Base 7 | 16047 | 31167 |
| Base 8 | 12018 | 21038 |
| Base 9 | 7829 | 14429 |
| Base 10 | 64110 | 109110 |
| Base 11 | 53311 | 90211 |
| Base 12 | 45512 | 76b12 |
| Base 13 | 3a413 | 65c13 |
| Base 14 | 33b14 | 57d14 |
| Base 15 | 2cb15 | 4cb15 |
| Base 16 | 28116 | 44316 |