Compare 27 vs 43
| Property | 27 | 43 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 3 | 1 | 
| Prime factorization | 33 | 431 | 
| Prime factorization | 3 × 3 × 3 | 43 | 
| Divisors count | 4 | 2 | 
| Divisors | 1, 3, 9, 27 | 1, 43 | 
| Number of properties | 0 | 12 | 
| Additive primes | 9th | |
| Centered heptagonal primes | 1st | |
| Cousin primes (1st member) | 6th | |
| Left-truncatable primes | 9th | |
| Lucky primes | 6th | |
| Primes | 14th | |
| Prime triplets (2nd member) | 7th | |
| Prime triplets (3rd member) | 6th | |
| Sexy primes (2nd member) | 8th | |
| Sexy prime triplets (3rd member) | 5th | |
| Twin primes (2nd member) | 6th | |
| Wagstaff primes | 3rd | |
| Roman numberals | XXVII | XLIII | 
| Base 2 | 110112 | 1010112 | 
| Base 3 | 10003 | 11213 | 
| Base 4 | 1234 | 2234 | 
| Base 5 | 1025 | 1335 | 
| Base 6 | 436 | 1116 | 
| Base 7 | 367 | 617 | 
| Base 8 | 338 | 538 | 
| Base 9 | 309 | 479 | 
| Base 10 | 2710 | 4310 | 
| Base 11 | 2511 | 3a11 | 
| Base 12 | 2312 | 3712 | 
| Base 13 | 2113 | 3413 | 
| Base 14 | 1d14 | 3114 | 
| Base 15 | 1c15 | 2d15 | 
| Base 16 | 1b16 | 2b16 |