Compare 10 vs 61
| Property | 10 | 61 | 
|---|---|---|
| Type | semiprime | prime | 
| Unique factors | 2 | 1 | 
| Total factors | 2 | 1 | 
| Prime factorization | 21 × 51 | 611 | 
| Prime factorization | 2 × 5 | 61 | 
| Divisors count | 4 | 2 | 
| Divisors | 1, 2, 5, 10 | 1, 61 | 
| Number of properties | 1 | 12 | 
| Additive primes | 11th | |
| Centered decagonal primes | 3rd | |
| Centered square primes | 4th | |
| Cuban primes 1 | 4th | |
| Long primes | 8th | |
| Primes | 18th | |
| Pythagorean primes | 8th | |
| Semiprimes | 4th | |
| Sexy primes (1st member) | 12th | |
| Sexy prime quadrupletss (1st member) | 4th | |
| Sexy prime triplets (1st member) | 8th | |
| Solinas primes | 15th | |
| Twin primes (2nd member) | 7th | |
| Roman numberals | X | LXI | 
| Base 2 | 10102 | 1111012 | 
| Base 3 | 1013 | 20213 | 
| Base 4 | 224 | 3314 | 
| Base 5 | 205 | 2215 | 
| Base 6 | 146 | 1416 | 
| Base 7 | 137 | 1157 | 
| Base 8 | 128 | 758 | 
| Base 9 | 119 | 679 | 
| Base 10 | 1010 | 6110 | 
| Base 11 | a11 | 5611 | 
| Base 12 | a12 | 5112 | 
| Base 13 | a13 | 4913 | 
| Base 14 | a14 | 4514 | 
| Base 15 | a15 | 4115 | 
| Base 16 | a16 | 3d16 |