Compare 66939 vs 66947
| Property | 66939 | 66947 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 531 × 4211 | 669471 |
| Prime factorization | 3 × 53 × 421 | 66947 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 53, 159, 421, 1263, 22313, 66939 | 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 | 100000101011110112 | 100000101100000112 |
| Base 3 | 101012110203 | 101012111123 |
| Base 4 | 1001113234 | 1001120034 |
| Base 5 | 41202245 | 41202425 |
| Base 6 | 12335236 | 12335356 |
| Base 7 | 3661057 | 3661167 |
| Base 8 | 2025738 | 2026038 |
| Base 9 | 1117369 | 1117459 |
| Base 10 | 6693910 | 6694710 |
| Base 11 | 4632411 | 4633111 |
| Base 12 | 328a312 | 328ab12 |
| Base 13 | 2461213 | 2461a13 |
| Base 14 | 1a57514 | 1a57d14 |
| Base 15 | 14c7915 | 14c8215 |
| Base 16 | 1057b16 | 1058316 |