Compare 61 vs 251
Property | 61 | 251 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 611 | 2511 |
Prime factorization | 61 | 251 |
Divisors count | 2 | 2 |
Divisors | 1, 61 | 1, 251 |
Number of properties | 12 | 10 |
Additive primes | 11th | |
Centered decagonal primes | 3rd | |
Centered square primes | 4th | |
Chen primes | 41st | |
Cuban primes 1 | 4th | |
Good primes | 19th | |
Harmonic primes | 20th | |
Isolated primes | 21st | |
Long primes | 8th | |
Primes | 18th | 54th |
Pythagorean primes | 8th | |
Sexy primes (1st member) | 12th | 30th |
Sexy prime quadrupletss (1st member) | 4th | 5th |
Sexy prime triplets (1st member) | 8th | 15th |
Solinas primes | 15th | 30th |
Sophie germain primes | 18th | |
Twin primes (2nd member) | 7th | |
Roman numberals | LXI | CCLI |
Base 2 | 1111012 | 111110112 |
Base 3 | 20213 | 1000223 |
Base 4 | 3314 | 33234 |
Base 5 | 2215 | 20015 |
Base 6 | 1416 | 10556 |
Base 7 | 1157 | 5067 |
Base 8 | 758 | 3738 |
Base 9 | 679 | 3089 |
Base 10 | 6110 | 25110 |
Base 11 | 5611 | 20911 |
Base 12 | 5112 | 18b12 |
Base 13 | 4913 | 16413 |
Base 14 | 4514 | 13d14 |
Base 15 | 4115 | 11b15 |
Base 16 | 3d16 | fb16 |