Compare 421 vs 425
| Property | 421 | 425 | 
|---|---|---|
| Type | prime | composite number | 
| Unique factors | 1 | 2 | 
| Total factors | 1 | 3 | 
| Prime factorization | 4211 | 52 × 171 | 
| Prime factorization | 421 | 5 × 5 × 17 | 
| Divisors count | 2 | 6 | 
| Divisors | 1, 421 | 1, 5, 17, 25, 85, 425 | 
| Number of properties | 6 | 0 | 
| Additive primes | 48th | |
| Centered square primes | 8th | |
| Lucky primes | 23rd | |
| Primes | 82nd | |
| Pythagorean primes | 40th | |
| Twin primes (2nd member) | 22nd | |
| Roman numberals | CDXXI | CDXXV | 
| Base 2 | 1101001012 | 1101010012 | 
| Base 3 | 1201213 | 1202023 | 
| Base 4 | 122114 | 122214 | 
| Base 5 | 31415 | 32005 | 
| Base 6 | 15416 | 15456 | 
| Base 7 | 11417 | 11457 | 
| Base 8 | 6458 | 6518 | 
| Base 9 | 5179 | 5229 | 
| Base 10 | 42110 | 42510 | 
| Base 11 | 35311 | 35711 | 
| Base 12 | 2b112 | 2b512 | 
| Base 13 | 26513 | 26913 | 
| Base 14 | 22114 | 22514 | 
| Base 15 | 1d115 | 1d515 | 
| Base 16 | 1a516 | 1a916 |