Compare 23 vs 71

Unique factors11
Total factors11
Prime factorization231711
Prime factorization2371
Divisors count22
Divisors1, 231, 71
Number of properties3013
Additive primes6th 
Centered heptagonal primes 2nd
Chen primes9th18th
Class 1+ primes7th11th
Cousin primes (2nd member)4th7th
Emirps 5th
Factorial primes5th 
Good primes 10th
Happy primes4th 
Harmonic primes4th 
Isolated primes2nd 
Kynea primes3rd 
Left-truncatable primes7th 
Long primes4th 
Multiplicative primes 8th
Pierpont primes of the 2nd kind7th11th
Prime quintuplet 2s (5th member)2nd 
Prime sextuplets (6th member)1st 
Prime triplets (2nd member) 8th
Prime triplets (3rd member)5th 
Right-truncatable primes5th11th
Safe primes4th 
Sexy primes (1st member)6th 
Sexy primes (2nd member)5th 
Sexy prime quadrupletss (3rd member)2nd 
Sexy prime quadrupletss (4th member)1st 
Sexy prime triplets (2nd member)4th 
Sexy prime triplets (3rd member)3rd 
Solinas primes8th17th
Sophie germain primes5th 
Thabit primes4th 
Twin primes (1st member) 8th
Two-sided primes5th 
Wedderburn-etherington primes4th 
Woodall primes2nd 
Roman numberalsXXIIILXXI
Base 210111210001112
Base 3212321223
Base 4113410134
Base 54352415
Base 63561556
Base 73271317
Base 82781078
Base 9259789
Base 1023107110
Base 1121116511
Base 121b125b12
Base 131a135613
Base 1419145114
Base 1518154b15
Base 1617164716
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