Compare 7 vs 19

Unique factors11
Total factors11
Prime factorization71191
Prime factorization719
Divisors count22
Divisors1, 71, 19
Number of properties3718
Additive primes4th 
Carol primes1st 
Centered triangular primes 1st
Chen primes4th8th
Class 1+ primes4th 
Cousin primes (1st member)2nd4th
Cousin primes (2nd member)1st 
Cuban primes 11st2nd
Double mersenne primes1st 
Euclid primes3rd 
Factorial primes4th 
Happy primes1st3rd
Kynea primes2nd 
Left-truncatable primes4th 
Long primes1st3rd
Lucas primes3rd 
Lucky primes2nd 
Mersenne primes2nd 
Multiplicative primes4th 
Palindromic primes4th 
Pierpont primes4th7th
Pierpont primes of the 2nd kind4th 
Prime quadruplets (2nd member)1st 
Prime quadruplets (4th member) 2nd
Prime quintuplet 1s (1st member)1st 
Prime quintuplet 1s (5th member) 1st
Prime quintuplet 2s (2nd member)1st 
Prime quintuplet 2s (4th member) 2nd
Prime sextuplets (1st member)1st 
Prime sextuplets (5th member) 1st
Prime triplets (1st member)2nd 
Prime triplets (2nd member)1st5th
Prime triplets (3rd member) 4th
Right-truncatable primes4th 
Safe primes2nd 
Sexy primes (1st member)2nd 
Sexy primes (2nd member) 4th
Sexy prime triplets (1st member)2nd 
Sexy prime triplets (3rd member) 2nd
Solinas primes3rd7th
Thabit primes of the 2nd kind1st 
Twin primes (2nd member)2nd4th
Two-sided primes4th 
Woodall primes1st 
Roman numberalsVIIXIX
Base 21112100112
Base 32132013
Base 41341034
Base 5125345
Base 6116316
Base 7107257
Base 878238
Base 979219
Base 107101910
Base 117111811
Base 127121712
Base 137131613
Base 147141514
Base 157151415
Base 167161316
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