Prime Numbers
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Numbers
Compare 3 vs 7
Compare 3 vs 7
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Property
3
7
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
3
^{1}
7
^{1}
Prime factorization
3
7
Divisors count
2
2
Divisors
1
,
3
1
,
7
Number of properties
29
37
Additive primes
2nd
4th
Carol primes
1st
Chen primes
2nd
4th
Class 1+ primes
2nd
4th
Cousin primes
(2nd member)
1st
Cousin primes
(1st member)
1st
2nd
Cuban primes 1
1st
Cullen primes
1st
Double mersenne primes
1st
Euclid primes
2nd
3rd
Factorial primes
2nd
4th
Fermat primes
1st
Fibonacci primes
2nd
Happy primes
1st
Kynea primes
2nd
Left-truncatable primes
2nd
4th
Leyland primes
1st
Long primes
1st
Lucas primes
2nd
3rd
Lucky primes
1st
2nd
Mersenne primes
1st
2nd
Multiplicative primes
2nd
4th
Palindromic primes
2nd
4th
Pierpont primes
2nd
4th
Pierpont primes of the 2nd kind
2nd
4th
Primes
2nd
4th
Prime quadruplets
(2nd member)
1st
Prime quintuplet 1s
(1st member)
1st
Prime quintuplet 2s
(2nd member)
1st
Prime sextuplets
(1st member)
1st
Prime triplets
(1st member)
2nd
Prime triplets
(2nd member)
1st
Proth primes
1st
Right-truncatable primes
2nd
4th
Safe primes
2nd
Sexy primes
(1st member)
2nd
Sexy prime triplets
(1st member)
2nd
Solinas primes
1st
3rd
Sophie germain primes
2nd
Super primes
1st
Thabit primes of the 2nd kind
1st
Twin primes
(1st member)
1st
Twin primes
(2nd member)
2nd
Two-sided primes
2nd
4th
Ulam primes
2nd
Wagstaff primes
1st
Wedderburn-etherington primes
2nd
Woodall primes
1st
Roman numberals
III
VII
Base 2
11
_{2}
111
_{2}
Base 3
10
_{3}
21
_{3}
Base 4
3
_{4}
13
_{4}
Base 5
3
_{5}
12
_{5}
Base 6
3
_{6}
11
_{6}
Base 7
3
_{7}
10
_{7}
Base 8
3
_{8}
7
_{8}
Base 9
3
_{9}
7
_{9}
Base 10
3
_{10}
7
_{10}
Base 11
3
_{11}
7
_{11}
Base 12
3
_{12}
7
_{12}
Base 13
3
_{13}
7
_{13}
Base 14
3
_{14}
7
_{14}
Base 15
3
_{15}
7
_{15}
Base 16
3
_{16}
7
_{16}
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