Prime Numbers
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Numbers
Compare 7 vs 23
Compare 7 vs 23
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vs
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Property
7
23
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
7
^{1}
23
^{1}
Prime factorization
7
23
Divisors count
2
2
Divisors
1
,
7
1
,
23
Number of properties
37
30
Additive primes
4th
6th
Carol primes
1st
Chen primes
4th
9th
Class 1+ primes
4th
7th
Cousin primes
(2nd member)
1st
4th
Cousin primes
(1st member)
2nd
Cuban primes 1
1st
Double mersenne primes
1st
Euclid primes
3rd
Factorial primes
4th
5th
Happy primes
1st
4th
Harmonic primes
4th
Isolated primes
2nd
Kynea primes
2nd
3rd
Left-truncatable primes
4th
7th
Long primes
1st
4th
Lucas primes
3rd
Lucky primes
2nd
Mersenne primes
2nd
Multiplicative primes
4th
Palindromic primes
4th
Pierpont primes
4th
Pierpont primes of the 2nd kind
4th
7th
Primes
4th
9th
Prime quadruplets
(2nd member)
1st
Prime quintuplet 1s
(1st member)
1st
Prime quintuplet 2s
(2nd member)
1st
Prime quintuplet 2s
(5th member)
2nd
Prime sextuplets
(6th member)
1st
Prime sextuplets
(1st member)
1st
Prime triplets
(1st member)
2nd
Prime triplets
(2nd member)
1st
Prime triplets
(3rd member)
5th
Right-truncatable primes
4th
5th
Safe primes
2nd
4th
Sexy primes
(1st member)
2nd
6th
Sexy primes
(2nd member)
5th
Sexy prime quadrupletss
(4th member)
1st
Sexy prime quadrupletss
(3rd member)
2nd
Sexy prime triplets
(1st member)
2nd
Sexy prime triplets
(2nd member)
4th
Sexy prime triplets
(3rd member)
3rd
Solinas primes
3rd
8th
Sophie germain primes
5th
Thabit primes
4th
Thabit primes of the 2nd kind
1st
Twin primes
(2nd member)
2nd
Two-sided primes
4th
5th
Wedderburn-etherington primes
4th
Woodall primes
1st
2nd
Roman numberals
VII
XXIII
Base 2
111
_{2}
10111
_{2}
Base 3
21
_{3}
212
_{3}
Base 4
13
_{4}
113
_{4}
Base 5
12
_{5}
43
_{5}
Base 6
11
_{6}
35
_{6}
Base 7
10
_{7}
32
_{7}
Base 8
7
_{8}
27
_{8}
Base 9
7
_{9}
25
_{9}
Base 10
7
_{10}
23
_{10}
Base 11
7
_{11}
21
_{11}
Base 12
7
_{12}
1b
_{12}
Base 13
7
_{13}
1a
_{13}
Base 14
7
_{14}
19
_{14}
Base 15
7
_{15}
18
_{15}
Base 16
7
_{16}
17
_{16}
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