Compare 31 vs 151
Property | 31 | 151 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 311 | 1511 |
Prime factorization | 31 | 151 |
Divisors count | 2 | 2 |
Divisors | 1, 31 | 1, 151 |
Number of properties | 18 | 9 |
Additive primes | 20th | |
Centered decagonal primes | 2nd | 5th |
Centered triangular primes | 2nd | |
Chen primes | 11th | |
Class 1+ primes | 8th | |
Emirps | 3rd | |
Euclid primes | 4th | |
Happy primes | 5th | |
Lucky primes | 4th | 11th |
Mersenne primes | 3rd | |
Multiplicative primes | 7th | 11th |
Palindromic primes | 8th | |
Pierpont primes of the 2nd kind | 8th | |
Primes | 11th | 36th |
Right-truncatable primes | 7th | |
Sexy primes (1st member) | 7th | 21st |
Sexy prime triplets (1st member) | 5th | 12th |
Solinas primes | 10th | |
Super primes | 5th | |
Twin primes (2nd member) | 5th | 12th |
Roman numberals | XXXI | CLI |
Base 2 | 111112 | 100101112 |
Base 3 | 10113 | 121213 |
Base 4 | 1334 | 21134 |
Base 5 | 1115 | 11015 |
Base 6 | 516 | 4116 |
Base 7 | 437 | 3047 |
Base 8 | 378 | 2278 |
Base 9 | 349 | 1779 |
Base 10 | 3110 | 15110 |
Base 11 | 2911 | 12811 |
Base 12 | 2712 | 10712 |
Base 13 | 2513 | b813 |
Base 14 | 2314 | ab14 |
Base 15 | 2115 | a115 |
Base 16 | 1f16 | 9716 |