Prime Numbers
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Numbers
Compare 13 vs 73
Compare 13 vs 73
Compare
vs
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Property
13
73
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
13
1
73
1
Prime factorization
13
73
Divisors count
2
2
Divisors
1
,
13
1
,
73
Number of properties
32
17
Centered square primes
2nd
Chen primes
6th
Cousin primes
(1st member)
3rd
Cuban primes 2
1st
Emirps
1st
6th
Fibonacci primes
4th
Happy primes
2nd
Harmonic primes
2nd
7th
Left-truncatable primes
5th
13th
Lucky primes
3rd
8th
Multiplicative primes
5th
Pierpont primes
5th
9th
Primes
6th
21st
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
Prime triplets
(3rd member)
2nd
8th
Proth primes
3rd
Pythagorean primes
2nd
9th
Right-truncatable primes
12th
Sexy primes
(1st member)
4th
14th
Sexy primes
(2nd member)
2nd
13th
Sexy prime quadrupletss
(3rd member)
4th
Sexy prime triplets
(2nd member)
2nd
9th
Sexy prime triplets
(3rd member)
8th
Solinas primes
5th
18th
Thabit primes of the 2nd kind
2nd
Twin primes
(2nd member)
3rd
8th
Two-sided primes
8th
Ulam primes
4th
Wilson primes
2nd
Roman numberals
XIII
LXXIII
Base 2
1101
2
1001001
2
Base 3
111
3
2201
3
Base 4
31
4
1021
4
Base 5
23
5
243
5
Base 6
21
6
201
6
Base 7
16
7
133
7
Base 8
15
8
111
8
Base 9
14
9
81
9
Base 10
13
10
73
10
Base 11
12
11
67
11
Base 12
11
12
61
12
Base 13
10
13
58
13
Base 14
d
14
53
14
Base 15
d
15
4d
15
Base 16
d
16
49
16
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