1. Numbers
  2. Compare 13 vs 257

Compare 13 vs 257

Property13257
Typeprimeprime
Unique factors11
Total factors11
Prime factorization1312571
Prime factorization13257
Divisors count22
Divisors1, 131, 257
Number of properties3216
Centered square primes2nd 
Chen primes6th42nd
Cousin primes (1st member)3rd 
Cuban primes 21st 
Emirps1st 
Fermat primes 4th
Fibonacci primes4th 
Good primes 20th
Happy primes2nd 
Harmonic primes2nd 
Isolated primes 22nd
Left-truncatable primes5th 
Long primes 21st
Lucky primes3rd 
Multiplicative primes5th 
Pierpont primes5th14th
Primes6th55th
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 primes3rd10th
Pythagorean primes2nd25th
Quartan primes 4th
Sexy primes (1st member)4th31st
Sexy primes (2nd member)2nd30th
Sexy prime quadrupletss (2nd member) 5th
Sexy prime triplets (1st member) 16th
Sexy prime triplets (2nd member)2nd15th
Solinas primes5th31st
Thabit primes of the 2nd kind2nd 
Twin primes (2nd member)3rd 
Ulam primes4th 
Wilson primes2nd 
Roman numberalsXIIICCLVII
Base 2110121000000012
Base 311131001123
Base 4314100014
Base 523520125
Base 621611056
Base 71675157
Base 81584018
Base 91493159
Base 10131025710
Base 11121121411
Base 12111219512
Base 13101316a13
Base 14d1414514
Base 15d1512215
Base 16d1610116
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