Compare 66851 vs 67139
| Property | 66851 | 67139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 668511 | 671391 |
| Prime factorization | 66851 | 67139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 66851 | 1, 67139 |
| Number of properties | 6 | 7 |
| Chen primes | 3049th | 3057th |
| Good primes | 526th | |
| Happy primes | 1037th | |
| Harmonic primes | 2514th | |
| Long primes | 2522nd | 2531st |
| Primes | 6661st | 6688th |
| Safe primes | 487th | |
| Super primes | 859th | |
| Twin primes (1st member) | 873rd | 875th |
| Roman numberals | ||
| Base 2 | 100000101001000112 | 100000110010000112 |
| Base 3 | 101012002223 | 101020021223 |
| Base 4 | 1001102034 | 1001210034 |
| Base 5 | 41144015 | 41220245 |
| Base 6 | 12332556 | 12344556 |
| Base 7 | 3656217 | 3665127 |
| Base 8 | 2024438 | 2031038 |
| Base 9 | 1116289 | 1120789 |
| Base 10 | 6685110 | 6713910 |
| Base 11 | 4625411 | 4649611 |
| Base 12 | 3282b12 | 32a2b12 |
| Base 13 | 2457513 | 2473713 |
| Base 14 | 1a51114 | 1a67914 |
| Base 15 | 14c1b15 | 14d5e15 |
| Base 16 | 1052316 | 1064316 |