Compare 66945 vs 66947
| Property | 66945 | 66947 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 44631 | 669471 |
| Prime factorization | 3 × 5 × 4463 | 66947 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 15, 4463, 13389, 22315, 66945 | 1, 66947 |
| Number of properties | 0 | 6 |
| Chen primes | 3051st | |
| Cousin primes (2nd member) | 877th | |
| Left-truncatable primes | 265th | |
| Primes | 6671st | |
| Prime triplets (2nd member) | 373rd | |
| Twin primes (1st member) | 874th | |
| Roman numberals | ||
| Base 2 | 100000101100000012 | 100000101100000112 |
| Base 3 | 101012111103 | 101012111123 |
| Base 4 | 1001120014 | 1001120034 |
| Base 5 | 41202405 | 41202425 |
| Base 6 | 12335336 | 12335356 |
| Base 7 | 3661147 | 3661167 |
| Base 8 | 2026018 | 2026038 |
| Base 9 | 1117439 | 1117459 |
| Base 10 | 6694510 | 6694710 |
| Base 11 | 4632a11 | 4633111 |
| Base 12 | 328a912 | 328ab12 |
| Base 13 | 2461813 | 2461a13 |
| Base 14 | 1a57b14 | 1a57d14 |
| Base 15 | 14c8015 | 14c8215 |
| Base 16 | 1058116 | 1058316 |