Compare 31 vs 199
Property | 31 | 199 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 311 | 1991 |
Prime factorization | 31 | 199 |
Divisors count | 2 | 2 |
Divisors | 1, 31 | 1, 199 |
Number of properties | 18 | 10 |
Additive primes | 27th | |
Centered decagonal primes | 2nd | |
Centered triangular primes | 2nd | 4th |
Chen primes | 11th | 36th |
Class 1+ primes | 8th | |
Emirps | 3rd | 15th |
Euclid primes | 4th | |
Happy primes | 5th | |
Lucas primes | 7th | |
Lucky primes | 4th | |
Mersenne primes | 3rd | |
Multiplicative primes | 7th | |
Pierpont primes of the 2nd kind | 8th | |
Primes | 11th | 46th |
Prime quadruplets (4th member) | 4th | |
Prime triplets (3rd member) | 14th | |
Right-truncatable primes | 7th | |
Sexy primes (1st member) | 7th | |
Sexy primes (2nd member) | 26th | |
Sexy prime triplets (1st member) | 5th | |
Solinas primes | 10th | |
Super primes | 5th | |
Twin primes (2nd member) | 5th | 15th |
Roman numberals | XXXI | CXCIX |
Base 2 | 111112 | 110001112 |
Base 3 | 10113 | 211013 |
Base 4 | 1334 | 30134 |
Base 5 | 1115 | 12445 |
Base 6 | 516 | 5316 |
Base 7 | 437 | 4037 |
Base 8 | 378 | 3078 |
Base 9 | 349 | 2419 |
Base 10 | 3110 | 19910 |
Base 11 | 2911 | 17111 |
Base 12 | 2712 | 14712 |
Base 13 | 2513 | 12413 |
Base 14 | 2314 | 10314 |
Base 15 | 2115 | d415 |
Base 16 | 1f16 | c716 |