Compare 5 vs 191

Unique factors11
Total factors11
Prime factorization511911
Prime factorization5191
Divisors count22
Divisors1, 51, 191
Number of properties3616
Additive primes3rd24th
Bell primes2nd 
Centered square primes1st 
Chen primes3rd34th
Class 1+ primes3rd14th
Dihedral primes2nd 
Factorial primes3rd 
Fermat primes2nd 
Fibonacci primes3rd 
Good primes1st16th
Harmonic primes1st15th
Left-truncatable primes3rd 
Multiplicative primes3rd 
Palindromic primes3rd10th
Pierpont primes3rd 
Pierpont primes of the 2nd kind3rd14th
Prime quadruplets (1st member)1st4th
Prime quintuplet 2s (1st member)1st 
Prime triplets (1st member)1st13th
Proth primes2nd 
Pythagorean primes1st 
Restricted left-truncatable primes2nd 
Right-truncatable primes3rd 
Safe primes1st 
Sexy primes (1st member)1st25th
Sexy prime quadrupletss (1st member)1st 
Sexy prime triplets (1st member)1st 
Solinas primes2nd25th
Sophie germain primes3rd15th
Super primes2nd14th
Thabit primes2nd6th
Twin primes (1st member)2nd14th
Twin primes (2nd member)1st 
Two-sided primes3rd 
Wilson primes1st 
Roman numberalsVCXCI
Base 21012101111112
Base 3123210023
Base 411423334
Base 510512315
Base 6565156
Base 7573627
Base 8582778
Base 9592329
Base 1051019110
Base 1151116411
Base 1251213b12
Base 1351311913
Base 14514d914
Base 15515cb15
Base 16516bf16
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