Compare 1245 vs 1255
| Property | 1245 | 1255 | 
|---|---|---|
| Type | composite number | semiprime | 
| Unique factors | 3 | 2 | 
| Total factors | 3 | 2 | 
| Prime factorization | 31 × 51 × 831 | 51 × 2511 | 
| Prime factorization | 3 × 5 × 83 | 5 × 251 | 
| Divisors count | 8 | 4 | 
| Divisors | 1, 3, 5, 15, 83, 249, 415, 1245 | 1, 5, 251, 1255 | 
| Number of properties | 0 | 1 | 
| Semiprimes | 369th | |
| Roman numberals | MCCXLV | MCCLV | 
| Base 2 | 100110111012 | 100111001112 | 
| Base 3 | 12010103 | 12011113 | 
| Base 4 | 1031314 | 1032134 | 
| Base 5 | 144405 | 200105 | 
| Base 6 | 54336 | 54516 | 
| Base 7 | 34267 | 34427 | 
| Base 8 | 23358 | 23478 | 
| Base 9 | 16339 | 16449 | 
| Base 10 | 124510 | 125510 | 
| Base 11 | a3211 | a4111 | 
| Base 12 | 87912 | 88712 | 
| Base 13 | 74a13 | 75713 | 
| Base 14 | 64d14 | 65914 | 
| Base 15 | 58015 | 58a15 | 
| Base 16 | 4dd16 | 4e716 |