Compare 21157 vs 21187
| Property | 21157 | 21187 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211571 | 211871 |
| Prime factorization | 21157 | 21187 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21157 | 1, 21187 |
| Number of properties | 5 | 7 |
| Additive primes | 1107th | |
| Cousin primes (1st member) | 361st | |
| Harmonic primes | 874th | |
| Isolated primes | 1659th | 1663rd |
| Primes | 2378th | 2382nd |
| Prime triplets (1st member) | 178th | |
| Pythagorean primes | 1181st | |
| Sexy primes (1st member) | 720th | 722nd |
| Sexy prime triplets (1st member) | 197th | |
| Roman numberals | ||
| Base 2 | 1010010101001012 | 1010010110000112 |
| Base 3 | 10020001213 | 10020012013 |
| Base 4 | 110222114 | 110230034 |
| Base 5 | 11341125 | 11342225 |
| Base 6 | 2415416 | 2420316 |
| Base 7 | 1154537 | 1155257 |
| Base 8 | 512458 | 513038 |
| Base 9 | 320179 | 320519 |
| Base 10 | 2115710 | 2118710 |
| Base 11 | 1499411 | 14a1111 |
| Base 12 | 102b112 | 1031712 |
| Base 13 | 982613 | 984a13 |
| Base 14 | 79d314 | 7a1514 |
| Base 15 | 640715 | 642715 |
| Base 16 | 52a516 | 52c316 |