Compare 13 vs 17

Unique factors11
Total factors11
Prime factorization131171
Prime factorization1317
Divisors count22
Divisors1, 131, 17
Number of properties3236
Centered square primes2nd 
Chen primes6th7th
Class 1+ primes 6th
Cousin primes (1st member)3rd 
Cousin primes (2nd member) 3rd
Cuban primes 21st 
Fermat primes 3rd
Fibonacci primes4th 
Genocchi primes 1st
Good primes 3rd
Happy primes2nd 
Harmonic primes2nd3rd
Left-truncatable primes5th6th
Leyland primes 2nd
Long primes 2nd
Lucky primes3rd 
Multiplicative primes5th6th
Pierpont primes5th6th
Pierpont primes of the 2nd kind 6th
Prime quadruplets (2nd member)2nd 
Prime quadruplets (3rd member) 2nd
Prime quadruplets (4th member)1st 
Prime quintuplet 1s (3rd member)1st 
Prime quintuplet 1s (4th member) 1st
Prime quintuplet 2s (2nd member)2nd 
Prime quintuplet 2s (3rd member) 2nd
Prime quintuplet 2s (4th member)1st 
Prime quintuplet 2s (5th member) 1st
Prime sextuplets (3rd member)1st 
Prime sextuplets (4th member) 1st
Prime triplets (1st member)4th5th
Prime triplets (2nd member)3rd4th
Prime triplets (3rd member)2nd3rd
Proth primes3rd4th
Pythagorean primes2nd3rd
Quartan primes 2nd
Sexy primes (1st member)4th5th
Sexy primes (2nd member)2nd3rd
Sexy prime quadrupletss (2nd member) 2nd
Sexy prime quadrupletss (3rd member) 1st
Sexy prime triplets (1st member) 4th
Sexy prime triplets (2nd member)2nd3rd
Sexy prime triplets (3rd member) 1st
Solinas primes5th6th
Super primes 4th
Thabit primes of the 2nd kind2nd 
Twin primes (1st member) 4th
Twin primes (2nd member)3rd 
Ulam primes4th 
Wilson primes2nd 
Roman numberalsXIIIXVII
Base 211012100012
Base 311131223
Base 43141014
Base 5235325
Base 6216256
Base 7167237
Base 8158218
Base 9149189
Base 1013101710
Base 1112111611
Base 1211121512
Base 1310131413
Base 14d141314
Base 15d151215
Base 16d161116
This website uses cookies to ensure you get the best experience on our website. More info