Compare 3947 vs 4003
| Property | 3947 | 4003 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 39471 | 40031 | 
| Prime factorization | 3947 | 4003 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 3947 | 1, 4003 | 
| Number of properties | 8 | 6 | 
| Additive primes | 280th | 283rd | 
| Chen primes | 319th | |
| Cousin primes (1st member) | 109th | |
| Cousin primes (2nd member) | 108th | |
| Isolated primes | 343rd | |
| Left-truncatable primes | 87th | |
| Lucky primes | 116th | |
| Primes | 548th | 552nd | 
| Prime triplets (2nd member) | 72nd | |
| Restricted left-truncatable primes | 5th | |
| Safe primes | 60th | |
| Twin primes (2nd member) | 104th | |
| Roman numberals | MMMCMXLVII | MMMMIII | 
| Base 2 | 1111011010112 | 1111101000112 | 
| Base 3 | 121020123 | 121110213 | 
| Base 4 | 3312234 | 3322034 | 
| Base 5 | 1112425 | 1120035 | 
| Base 6 | 301356 | 303116 | 
| Base 7 | 143367 | 144467 | 
| Base 8 | 75538 | 76438 | 
| Base 9 | 53659 | 54379 | 
| Base 10 | 394710 | 400310 | 
| Base 11 | 2a6911 | 300a11 | 
| Base 12 | 234b12 | 239712 | 
| Base 13 | 1a4813 | 1a8c13 | 
| Base 14 | 161d14 | 165d14 | 
| Base 15 | 128215 | 12bd15 | 
| Base 16 | f6b16 | fa316 |