Compare 143 vs 151
| Property | 143 | 151 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 131 | 1511 |
| Prime factorization | 11 × 13 | 151 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 13, 143 | 1, 151 |
| Number of properties | 1 | 9 |
| Additive primes | 20th | |
| Centered decagonal primes | 5th | |
| Lucky primes | 11th | |
| Multiplicative primes | 11th | |
| Palindromic primes | 8th | |
| Primes | 36th | |
| Semiprimes | 48th | |
| Sexy primes (1st member) | 21st | |
| Sexy prime triplets (1st member) | 12th | |
| Twin primes (2nd member) | 12th | |
| Roman numberals | CXLIII | CLI |
| Base 2 | 100011112 | 100101112 |
| Base 3 | 120223 | 121213 |
| Base 4 | 20334 | 21134 |
| Base 5 | 10335 | 11015 |
| Base 6 | 3556 | 4116 |
| Base 7 | 2637 | 3047 |
| Base 8 | 2178 | 2278 |
| Base 9 | 1689 | 1779 |
| Base 10 | 14310 | 15110 |
| Base 11 | 12011 | 12811 |
| Base 12 | bb12 | 10712 |
| Base 13 | b013 | b813 |
| Base 14 | a314 | ab14 |
| Base 15 | 9815 | a115 |
| Base 16 | 8f16 | 9716 |