Compare 71 vs 191

Unique factors11
Total factors11
Prime factorization7111911
Prime factorization71191
Divisors count22
Divisors1, 711, 191
Number of properties1316
Additive primes 24th
Centered heptagonal primes2nd 
Chen primes18th34th
Class 1+ primes11th14th
Cousin primes (2nd member)7th 
Good primes10th16th
Harmonic primes 15th
Multiplicative primes8th 
Palindromic primes 10th
Pierpont primes of the 2nd kind11th14th
Prime quadruplets (1st member) 4th
Prime triplets (1st member) 13th
Prime triplets (2nd member)8th 
Right-truncatable primes11th 
Sexy primes (1st member) 25th
Solinas primes17th25th
Sophie germain primes 15th
Super primes 14th
Thabit primes 6th
Twin primes (1st member)8th14th
Roman numberalsLXXICXCI
Base 210001112101111112
Base 321223210023
Base 41013423334
Base 5241512315
Base 615565156
Base 713173627
Base 810782778
Base 97892329
Base 10711019110
Base 11651116411
Base 125b1213b12
Base 13561311913
Base 145114d914
Base 154b15cb15
Base 164716bf16
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