Compare 660901 vs 661139
| Property | 660901 | 661139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6609011 | 6611391 |
| Prime factorization | 660901 | 661139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 660901 | 1, 661139 |
| Number of properties | 3 | 4 |
| Chen primes | 20985th | 20993rd |
| Isolated primes | 42080th | |
| Primes | 53641st | 53661st |
| Safe primes | 3099th | |
| Twin primes (2nd member) | 5789th | |
| Roman numberals | ||
| Base 2 | 101000010101101001012 | 101000010110100100112 |
| Base 3 | 10201201202113 | 10201202201223 |
| Base 4 | 22011122114 | 22011221034 |
| Base 5 | 1321221015 | 1321240245 |
| Base 6 | 220554216 | 221004556 |
| Base 7 | 54215537 | 54223437 |
| Base 8 | 24126458 | 24132238 |
| Base 9 | 12165249 | 12168189 |
| Base 10 | 66090110 | 66113910 |
| Base 11 | 4115aa11 | 4117a611 |
| Base 12 | 27a57112 | 27a72b12 |
| Base 13 | 1a1a8713 | 1a1c0b13 |
| Base 14 | 132bd314 | 132d2314 |
| Base 15 | d0c5115 | d0d5e15 |
| Base 16 | a15a516 | a169316 |