Prime Numbers
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Numbers
Compare 23 vs 347
Compare 23 vs 347
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Property
23
347
Type
prime
prime
Unique factors
1
1
Total factors
1
1
Prime factorization
23
1
347
1
Prime factorization
23
347
Divisors count
2
2
Divisors
1
,
23
1
,
347
Number of properties
30
10
Additive primes
6th
Chen primes
9th
51st
Class 1+ primes
7th
Cousin primes
(2nd member)
4th
Emirps
18th
Factorial primes
5th
Good primes
25th
Happy primes
4th
Harmonic primes
4th
Isolated primes
2nd
Kynea primes
3rd
Left-truncatable primes
7th
26th
Long primes
4th
Pierpont primes of the 2nd kind
7th
Primes
9th
69th
Prime quintuplet 2s
(5th member)
2nd
Prime sextuplets
(6th member)
1st
Prime triplets
(1st member)
20th
Prime triplets
(3rd member)
5th
Right-truncatable primes
5th
Safe primes
4th
13th
Sexy primes
(1st member)
6th
38th
Sexy primes
(2nd member)
5th
Sexy prime quadrupletss
(3rd member)
2nd
Sexy prime quadrupletss
(4th member)
1st
Sexy prime triplets
(1st member)
18th
Sexy prime triplets
(2nd member)
4th
Sexy prime triplets
(3rd member)
3rd
Solinas primes
8th
Sophie germain primes
5th
Thabit primes
4th
Twin primes
(1st member)
21st
Two-sided primes
5th
Wedderburn-etherington primes
4th
Woodall primes
2nd
Roman numberals
XXIII
CCCXLVII
Base 2
10111
2
101011011
2
Base 3
212
3
110212
3
Base 4
113
4
11123
4
Base 5
43
5
2342
5
Base 6
35
6
1335
6
Base 7
32
7
1004
7
Base 8
27
8
533
8
Base 9
25
9
425
9
Base 10
23
10
347
10
Base 11
21
11
296
11
Base 12
1b
12
24b
12
Base 13
1a
13
209
13
Base 14
19
14
1ab
14
Base 15
18
15
182
15
Base 16
17
16
15b
16
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