Prime Numbers
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Numbers
Compare 13 vs 43
Compare 13 vs 43
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Property
13
43
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
13
^{1}
43
^{1}
Prime factorization
13
43
Divisors count
2
2
Divisors
1
,
13
1
,
43
Number of properties
32
12
Additive primes
9th
Centered heptagonal primes
1st
Centered square primes
2nd
Chen primes
6th
Cousin primes
(1st member)
3rd
6th
Cuban primes 2
1st
Emirps
1st
Fibonacci primes
4th
Happy primes
2nd
Harmonic primes
2nd
Left-truncatable primes
5th
9th
Lucky primes
3rd
6th
Multiplicative primes
5th
Pierpont primes
5th
Primes
6th
14th
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 sextuplets
(3rd member)
1st
Prime triplets
(1st member)
4th
Prime triplets
(2nd member)
3rd
7th
Prime triplets
(3rd member)
2nd
6th
Proth primes
3rd
Pythagorean primes
2nd
Sexy primes
(1st member)
4th
Sexy primes
(2nd member)
2nd
8th
Sexy prime triplets
(2nd member)
2nd
Sexy prime triplets
(3rd member)
5th
Solinas primes
5th
Thabit primes of the 2nd kind
2nd
Twin primes
(2nd member)
3rd
6th
Ulam primes
4th
Wagstaff primes
3rd
Wilson primes
2nd
Roman numberals
XIII
XLIII
Base 2
1101
_{2}
101011
_{2}
Base 3
111
_{3}
1121
_{3}
Base 4
31
_{4}
223
_{4}
Base 5
23
_{5}
133
_{5}
Base 6
21
_{6}
111
_{6}
Base 7
16
_{7}
61
_{7}
Base 8
15
_{8}
53
_{8}
Base 9
14
_{9}
47
_{9}
Base 10
13
_{10}
43
_{10}
Base 11
12
_{11}
3a
_{11}
Base 12
11
_{12}
37
_{12}
Base 13
10
_{13}
34
_{13}
Base 14
d
_{14}
31
_{14}
Base 15
d
_{15}
2d
_{15}
Base 16
d
_{16}
2b
_{16}
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