Prime Numbers
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Numbers
Compare 17 vs 31
Compare 17 vs 31
Compare
vs
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Property
17
31
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
17
^{1}
31
^{1}
Prime factorization
17
31
Divisors count
2
2
Divisors
1
,
17
1
,
31
Number of properties
36
18
Centered decagonal primes
2nd
Centered triangular primes
2nd
Chen primes
7th
11th
Class 1+ primes
6th
8th
Cousin primes
(2nd member)
3rd
Emirps
2nd
3rd
Euclid primes
4th
Fermat primes
3rd
Genocchi primes
1st
Good primes
3rd
Happy primes
5th
Harmonic primes
3rd
Left-truncatable primes
6th
Leyland primes
2nd
Long primes
2nd
Lucky primes
4th
Mersenne primes
3rd
Multiplicative primes
6th
7th
Pierpont primes
6th
Pierpont primes of the 2nd kind
6th
8th
Primes
7th
11th
Prime quadruplets
(3rd member)
2nd
Prime quintuplet 1s
(4th member)
1st
Prime quintuplet 2s
(3rd member)
2nd
Prime quintuplet 2s
(5th member)
1st
Prime sextuplets
(4th member)
1st
Prime triplets
(1st member)
5th
Prime triplets
(2nd member)
4th
Prime triplets
(3rd member)
3rd
Proth primes
4th
Pythagorean primes
3rd
Quartan primes
2nd
Right-truncatable primes
7th
Sexy primes
(1st member)
5th
7th
Sexy primes
(2nd member)
3rd
Sexy prime quadrupletss
(2nd member)
2nd
Sexy prime quadrupletss
(3rd member)
1st
Sexy prime triplets
(1st member)
4th
5th
Sexy prime triplets
(2nd member)
3rd
Sexy prime triplets
(3rd member)
1st
Solinas primes
6th
10th
Super primes
4th
5th
Twin primes
(1st member)
4th
Twin primes
(2nd member)
5th
Roman numberals
XVII
XXXI
Base 2
10001
_{2}
11111
_{2}
Base 3
122
_{3}
1011
_{3}
Base 4
101
_{4}
133
_{4}
Base 5
32
_{5}
111
_{5}
Base 6
25
_{6}
51
_{6}
Base 7
23
_{7}
43
_{7}
Base 8
21
_{8}
37
_{8}
Base 9
18
_{9}
34
_{9}
Base 10
17
_{10}
31
_{10}
Base 11
16
_{11}
29
_{11}
Base 12
15
_{12}
27
_{12}
Base 13
14
_{13}
25
_{13}
Base 14
13
_{14}
23
_{14}
Base 15
12
_{15}
21
_{15}
Base 16
11
_{16}
1f
_{16}
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