Compare 21139 vs 21157
| Property | 21139 | 21157 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211391 | 211571 |
| Prime factorization | 21139 | 21157 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21139 | 1, 21157 |
| Number of properties | 5 | 5 |
| Cousin primes (1st member) | 360th | |
| Good primes | 266th | |
| Isolated primes | 1656th | 1659th |
| Lucky primes | 385th | |
| Primes | 2375th | 2378th |
| Pythagorean primes | 1181st | |
| Sexy primes (1st member) | 720th | |
| Sexy prime triplets (1st member) | 197th | |
| Roman numberals | ||
| Base 2 | 1010010100100112 | 1010010101001012 |
| Base 3 | 10012222213 | 10020001213 |
| Base 4 | 110221034 | 110222114 |
| Base 5 | 11340245 | 11341125 |
| Base 6 | 2415116 | 2415416 |
| Base 7 | 1154267 | 1154537 |
| Base 8 | 512238 | 512458 |
| Base 9 | 318879 | 320179 |
| Base 10 | 2113910 | 2115710 |
| Base 11 | 1497811 | 1499411 |
| Base 12 | 1029712 | 102b112 |
| Base 13 | 981113 | 982613 |
| Base 14 | 79bd14 | 79d314 |
| Base 15 | 63e415 | 640715 |
| Base 16 | 529316 | 52a516 |