Compare 3 vs 13

Unique factors11
Total factors11
Prime factorization31131
Prime factorization313
Divisors count22
Divisors1, 31, 13
Number of properties2932
Additive primes2nd 
Centered square primes 2nd
Chen primes2nd6th
Class 1+ primes2nd 
Cousin primes (1st member)1st3rd
Cuban primes 2 1st
Cullen primes1st 
Emirps 1st
Euclid primes2nd 
Factorial primes2nd 
Fermat primes1st 
Fibonacci primes2nd4th
Happy primes 2nd
Harmonic primes 2nd
Left-truncatable primes2nd5th
Leyland primes1st 
Lucas primes2nd 
Lucky primes1st3rd
Mersenne primes1st 
Multiplicative primes2nd5th
Palindromic primes2nd 
Pierpont primes2nd5th
Pierpont primes of the 2nd kind2nd 
Prime quadruplets (2nd member) 2nd
Prime quadruplets (4th member) 1st
Prime quintuplet 1s (3rd member) 1st
Prime quintuplet 2s (2nd member) 2nd
Prime quintuplet 2s (4th member) 1st
Prime sextuplets (3rd member) 1st
Prime triplets (1st member) 4th
Prime triplets (2nd member) 3rd
Prime triplets (3rd member) 2nd
Proth primes1st3rd
Pythagorean primes 2nd
Right-truncatable primes2nd 
Sexy primes (1st member) 4th
Sexy primes (2nd member) 2nd
Sexy prime triplets (2nd member) 2nd
Solinas primes1st5th
Sophie germain primes2nd 
Super primes1st 
Thabit primes of the 2nd kind 2nd
Twin primes (1st member)1st 
Twin primes (2nd member) 3rd
Two-sided primes2nd 
Ulam primes2nd4th
Wagstaff primes1st 
Wedderburn-etherington primes2nd 
Wilson primes 2nd
Roman numberalsIIIXIII
Base 211211012
Base 31031113
Base 434314
Base 535235
Base 636216
Base 737167
Base 838158
Base 939149
Base 103101310
Base 113111211
Base 123121112
Base 133131013
Base 14314d14
Base 15315d15
Base 16316d16
This website uses cookies to ensure you get the best experience on our website. More info