Compare 991429 vs 991531
| Property | 991429 | 991531 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9914291 | 9915311 |
| Prime factorization | 991429 | 991531 |
| Divisors count | 2 | 2 |
| Divisors | 1, 991429 | 1, 991531 |
| Number of properties | 2 | 3 |
| Isolated primes | 61668th | |
| Lucky primes | 8552nd | |
| Primes | 77880th | 77887th |
| Twin primes (2nd member) | 8110th | |
| Roman numberals | ||
| Base 2 | 111100100000110001012 | 111100100001001010112 |
| Base 3 | 12121002221213 | 12121010101013 |
| Base 4 | 33020030114 | 33020102234 |
| Base 5 | 2232112045 | 2232121115 |
| Base 6 | 331255416 | 331302316 |
| Base 7 | 112663157 | 112665227 |
| Base 8 | 36203058 | 36204538 |
| Base 9 | 17708779 | 17711119 |
| Base 10 | 99142910 | 99153110 |
| Base 11 | 61796a11 | 617a5211 |
| Base 12 | 3b98b112 | 3b997712 |
| Base 13 | 28935a13 | 28940813 |
| Base 14 | 1bb44514 | 1bb4b914 |
| Base 15 | 148b5415 | 148bc115 |
| Base 16 | f20c516 | f212b16 |