Prime Numbers
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Numbers
Compare 13 vs 23
Compare 13 vs 23
Compare
vs
Compare
Property
13
23
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
13
^{1}
23
^{1}
Prime factorization
13
23
Divisors count
2
2
Divisors
1
,
13
1
,
23
Number of properties
32
30
Additive primes
6th
Centered square primes
2nd
Chen primes
6th
9th
Class 1+ primes
7th
Cousin primes
(1st member)
3rd
Cousin primes
(2nd member)
4th
Cuban primes 2
1st
Emirps
1st
Factorial primes
5th
Fibonacci primes
4th
Happy primes
2nd
4th
Harmonic primes
2nd
4th
Isolated primes
2nd
Kynea primes
3rd
Left-truncatable primes
5th
7th
Long primes
4th
Lucky primes
3rd
Multiplicative primes
5th
Pierpont primes
5th
Pierpont primes of the 2nd kind
7th
Primes
6th
9th
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 quintuplet 2s
(5th member)
2nd
Prime sextuplets
(3rd member)
1st
Prime sextuplets
(6th member)
1st
Prime triplets
(1st member)
4th
Prime triplets
(2nd member)
3rd
Prime triplets
(3rd member)
2nd
5th
Proth primes
3rd
Pythagorean primes
2nd
Right-truncatable primes
5th
Safe primes
4th
Sexy primes
(1st member)
4th
6th
Sexy primes
(2nd member)
2nd
5th
Sexy prime quadrupletss
(3rd member)
2nd
Sexy prime quadrupletss
(4th member)
1st
Sexy prime triplets
(2nd member)
2nd
4th
Sexy prime triplets
(3rd member)
3rd
Solinas primes
5th
8th
Sophie germain primes
5th
Thabit primes
4th
Thabit primes of the 2nd kind
2nd
Twin primes
(2nd member)
3rd
Two-sided primes
5th
Ulam primes
4th
Wedderburn-etherington primes
4th
Wilson primes
2nd
Woodall primes
2nd
Roman numberals
XIII
XXIII
Base 2
1101
_{2}
10111
_{2}
Base 3
111
_{3}
212
_{3}
Base 4
31
_{4}
113
_{4}
Base 5
23
_{5}
43
_{5}
Base 6
21
_{6}
35
_{6}
Base 7
16
_{7}
32
_{7}
Base 8
15
_{8}
27
_{8}
Base 9
14
_{9}
25
_{9}
Base 10
13
_{10}
23
_{10}
Base 11
12
_{11}
21
_{11}
Base 12
11
_{12}
1b
_{12}
Base 13
10
_{13}
1a
_{13}
Base 14
d
_{14}
19
_{14}
Base 15
d
_{15}
18
_{15}
Base 16
d
_{16}
17
_{16}
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