Compare 977 vs 1021
| Property | 977 | 1021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9771 | 10211 |
| Prime factorization | 977 | 1021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 977 | 1, 1021 |
| Number of properties | 10 | 8 |
| Additive primes | 88th | |
| Chen primes | 113th | |
| Emirps | 38th | |
| Harmonic primes | 60th | 61st |
| Isolated primes | 96th | |
| Long primes | 59th | 62nd |
| Lucky primes | 45th | |
| Primes | 165th | 172nd |
| Pythagorean primes | 79th | 83rd |
| Sexy primes (1st member) | 73rd | |
| Sexy primes (2nd member) | 72nd | |
| Sexy prime triplets (2nd member) | 28th | |
| Solinas primes | 46th | |
| Twin primes (2nd member) | 36th | |
| Roman numberals | CMLXXVII | MXXI |
| Base 2 | 11110100012 | 11111111012 |
| Base 3 | 11000123 | 11012113 |
| Base 4 | 331014 | 333314 |
| Base 5 | 124025 | 130415 |
| Base 6 | 43056 | 44216 |
| Base 7 | 25647 | 26567 |
| Base 8 | 17218 | 17758 |
| Base 9 | 13059 | 13549 |
| Base 10 | 97710 | 102110 |
| Base 11 | 80911 | 84911 |
| Base 12 | 69512 | 71112 |
| Base 13 | 5a213 | 60713 |
| Base 14 | 4db14 | 52d14 |
| Base 15 | 45215 | 48115 |
| Base 16 | 3d116 | 3fd16 |