Prime Numbers
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Numbers
Compare 47 vs 131
Compare 47 vs 131
Compare
vs
Compare
Property
47
131
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
47
1
131
1
Prime factorization
47
131
Divisors count
2
2
Divisors
1
,
47
1
,
131
Number of properties
21
12
Additive primes
10th
17th
Carol primes
2nd
Chen primes
14th
26th
Class 1+ primes
9th
Cousin primes
(2nd member)
6th
12th
Isolated primes
4th
13th
Left-truncatable primes
10th
Long primes
6th
12th
Lucas primes
6th
Multiplicative primes
10th
Palindromic primes
7th
Pierpont primes of the 2nd kind
9th
Primes
15th
32nd
Prime triplets
(3rd member)
7th
Safe primes
5th
Sexy primes
(1st member)
10th
20th
Sexy primes
(2nd member)
9th
Sexy prime quadrupletss
(2nd member)
3rd
Sexy prime triplets
(1st member)
7th
Sexy prime triplets
(2nd member)
6th
Solinas primes
13th
23rd
Sophie germain primes
12th
Thabit primes
5th
Ulam primes
5th
8th
Roman numberals
XLVII
CXXXI
Base 2
101111
2
10000011
2
Base 3
1202
3
11212
3
Base 4
233
4
2003
4
Base 5
142
5
1011
5
Base 6
115
6
335
6
Base 7
65
7
245
7
Base 8
57
8
203
8
Base 9
52
9
155
9
Base 10
47
10
131
10
Base 11
43
11
10a
11
Base 12
3b
12
ab
12
Base 13
38
13
a1
13
Base 14
35
14
95
14
Base 15
32
15
8b
15
Base 16
2f
16
83
16
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