Compare 70 vs 73
| Property | 70 | 73 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 51 × 71 | 731 |
| Prime factorization | 2 × 5 × 7 | 73 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 5, 7, 10, 14, 35, 70 | 1, 73 |
| Number of properties | 0 | 17 |
| Emirps | 6th | |
| Harmonic primes | 7th | |
| Left-truncatable primes | 13th | |
| Lucky primes | 8th | |
| Pierpont primes | 9th | |
| Primes | 21st | |
| Prime triplets (3rd member) | 8th | |
| Pythagorean primes | 9th | |
| Right-truncatable primes | 12th | |
| Sexy primes (1st member) | 14th | |
| Sexy primes (2nd member) | 13th | |
| Sexy prime quadrupletss (3rd member) | 4th | |
| Sexy prime triplets (2nd member) | 9th | |
| Sexy prime triplets (3rd member) | 8th | |
| Solinas primes | 18th | |
| Twin primes (2nd member) | 8th | |
| Two-sided primes | 8th | |
| Roman numberals | LXX | LXXIII |
| Base 2 | 10001102 | 10010012 |
| Base 3 | 21213 | 22013 |
| Base 4 | 10124 | 10214 |
| Base 5 | 2405 | 2435 |
| Base 6 | 1546 | 2016 |
| Base 7 | 1307 | 1337 |
| Base 8 | 1068 | 1118 |
| Base 9 | 779 | 819 |
| Base 10 | 7010 | 7310 |
| Base 11 | 6411 | 6711 |
| Base 12 | 5a12 | 6112 |
| Base 13 | 5513 | 5813 |
| Base 14 | 5014 | 5314 |
| Base 15 | 4a15 | 4d15 |
| Base 16 | 4616 | 4916 |