Compare 13 vs 61

Unique factors11
Total factors11
Prime factorization131611
Prime factorization1361
Divisors count22
Divisors1, 131, 61
Number of properties3212
Additive primes 11th
Centered decagonal primes 3rd
Centered square primes2nd4th
Chen primes6th 
Cousin primes (1st member)3rd 
Cuban primes 1 4th
Cuban primes 21st 
Fibonacci primes4th 
Happy primes2nd 
Harmonic primes2nd 
Left-truncatable primes5th 
Long primes 8th
Lucky primes3rd 
Multiplicative primes5th 
Pierpont primes5th 
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 primes3rd 
Pythagorean primes2nd8th
Sexy primes (1st member)4th12th
Sexy primes (2nd member)2nd 
Sexy prime quadrupletss (1st member) 4th
Sexy prime triplets (1st member) 8th
Sexy prime triplets (2nd member)2nd 
Solinas primes5th15th
Thabit primes of the 2nd kind2nd 
Twin primes (2nd member)3rd7th
Ulam primes4th 
Wilson primes2nd 
Roman numberalsXIIILXI
Base 2110121111012
Base 3111320213
Base 43143314
Base 52352215
Base 62161416
Base 71671157
Base 8158758
Base 9149679
Base 1013106110
Base 1112115611
Base 1211125112
Base 1310134913
Base 14d144514
Base 15d154115
Base 16d163d16
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