Compare 191 vs 521
Property | 191 | 521 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 1911 | 5211 |
Prime factorization | 191 | 521 |
Divisors count | 2 | 2 |
Divisors | 1, 191 | 1, 521 |
Number of properties | 16 | 6 |
Additive primes | 24th | |
Chen primes | 34th | 70th |
Class 1+ primes | 14th | |
Good primes | 16th | |
Harmonic primes | 15th | |
Lucas primes | 8th | |
Palindromic primes | 10th | |
Pierpont primes of the 2nd kind | 14th | |
Primes | 43rd | 98th |
Prime quadruplets (1st member) | 4th | |
Prime triplets (1st member) | 13th | |
Pythagorean primes | 46th | |
Sexy primes (1st member) | 25th | |
Solinas primes | 25th | 39th |
Sophie germain primes | 15th | |
Super primes | 14th | |
Thabit primes | 6th | |
Twin primes (1st member) | 14th | 25th |
Roman numberals | CXCI | DXXI |
Base 2 | 101111112 | 10000010012 |
Base 3 | 210023 | 2010223 |
Base 4 | 23334 | 200214 |
Base 5 | 12315 | 40415 |
Base 6 | 5156 | 22256 |
Base 7 | 3627 | 13437 |
Base 8 | 2778 | 10118 |
Base 9 | 2329 | 6389 |
Base 10 | 19110 | 52110 |
Base 11 | 16411 | 43411 |
Base 12 | 13b12 | 37512 |
Base 13 | 11913 | 31113 |
Base 14 | d914 | 29314 |
Base 15 | cb15 | 24b15 |
Base 16 | bf16 | 20916 |