Compare 1 vs 2
Property | 1 | 2 |
---|---|---|
Type | composite number | prime |
Unique factors | 0 | 1 |
Total factors | 0 | 1 |
Prime factorization | 21 | |
Prime factorization | 2 | |
Divisors count | 1 | 2 |
Divisors | 1 | 1, 2 |
Number of properties | 0 | 26 |
Additive primes | 1st | |
Bell primes | 1st | |
Chen primes | 1st | |
Class 1+ primes | 1st | |
Dihedral primes | 1st | |
Euclid primes | 1st | |
Factorial primes | 1st | |
Fibonacci primes | 1st | |
Isolated primes | 1st | |
Kynea primes | 1st | |
Left-truncatable primes | 1st | |
Lucas primes | 1st | |
Mills primes | 1st | |
Multiplicative primes | 1st | |
Palindromic primes | 1st | |
Pierpont primes | 1st | |
Pierpont primes of the 2nd kind | 1st | |
Primes | 1st | |
Quartan primes | 1st | |
Restricted left-truncatable primes | 1st | |
Right-truncatable primes | 1st | |
Sophie germain primes | 1st | |
Thabit primes | 1st | |
Two-sided primes | 1st | |
Ulam primes | 1st | |
Wedderburn-etherington primes | 1st | |
Roman numberals | I | II |
Base 2 | 12 | 102 |
Base 3 | 13 | 23 |
Base 4 | 14 | 24 |
Base 5 | 15 | 25 |
Base 6 | 16 | 26 |
Base 7 | 17 | 27 |
Base 8 | 18 | 28 |
Base 9 | 19 | 29 |
Base 10 | 110 | 210 |
Base 11 | 111 | 211 |
Base 12 | 112 | 212 |
Base 13 | 113 | 213 |
Base 14 | 114 | 214 |
Base 15 | 115 | 215 |
Base 16 | 116 | 216 |