Compare 151 vs 1511
| Property | 151 | 1511 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1511 | 15111 |
| Prime factorization | 151 | 1511 |
| Divisors count | 2 | 2 |
| Divisors | 1, 151 | 1, 1511 |
| Number of properties | 9 | 7 |
| Additive primes | 20th | |
| Centered decagonal primes | 5th | |
| Chen primes | 155th | |
| Emirps | 73rd | |
| Happy primes | 48th | |
| Isolated primes | 141st | |
| Lucky primes | 11th | |
| Multiplicative primes | 11th | 17th |
| Palindromic primes | 8th | |
| Primes | 36th | 240th |
| Sexy primes (1st member) | 21st | |
| Sexy prime triplets (1st member) | 12th | |
| Sophie germain primes | 51st | |
| Twin primes (2nd member) | 12th | |
| Roman numberals | CLI | MDXI |
| Base 2 | 100101112 | 101111001112 |
| Base 3 | 121213 | 20012223 |
| Base 4 | 21134 | 1132134 |
| Base 5 | 11015 | 220215 |
| Base 6 | 4116 | 105556 |
| Base 7 | 3047 | 42567 |
| Base 8 | 2278 | 27478 |
| Base 9 | 1779 | 20589 |
| Base 10 | 15110 | 151110 |
| Base 11 | 12811 | 115411 |
| Base 12 | 10712 | a5b12 |
| Base 13 | b813 | 8c313 |
| Base 14 | ab14 | 79d14 |
| Base 15 | a115 | 6ab15 |
| Base 16 | 9716 | 5e716 |