Compare 197 vs 991
Property | 197 | 991 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 1971 | 9911 |
Prime factorization | 197 | 991 |
Divisors count | 2 | 2 |
Divisors | 1, 197 | 1, 991 |
Number of properties | 13 | 10 |
Additive primes | 26th | 89th |
Centered heptagonal primes | 3rd | |
Chen primes | 35th | 115th |
Cousin primes (2nd member) | 14th | |
Emirps | 36th | |
Isolated primes | 98th | |
Left-truncatable primes | 20th | |
Lucky primes | 42nd | |
Primes | 45th | 167th |
Prime quadruplets (3rd member) | 4th | |
Prime triplets (2nd member) | 14th | |
Prime triplets (3rd member) | 13th | |
Pythagorean primes | 21st | |
Sexy primes (1st member) | 74th | |
Sexy primes (2nd member) | 25th | |
Solinas primes | 43rd | |
Super primes | 39th | |
Twin primes (1st member) | 15th | |
Ulam primes | 9th | 18th |
Roman numberals | CXCVII | CMXCI |
Base 2 | 110001012 | 11110111112 |
Base 3 | 210223 | 11002013 |
Base 4 | 30114 | 331334 |
Base 5 | 12425 | 124315 |
Base 6 | 5256 | 43316 |
Base 7 | 4017 | 26147 |
Base 8 | 3058 | 17378 |
Base 9 | 2389 | 13219 |
Base 10 | 19710 | 99110 |
Base 11 | 16a11 | 82111 |
Base 12 | 14512 | 6a712 |
Base 13 | 12213 | 5b313 |
Base 14 | 10114 | 50b14 |
Base 15 | d215 | 46115 |
Base 16 | c516 | 3df16 |