Double factorial primes from 1 to 10000
HOME
Primes from 1 to 10000
Primes from 10k to 100k
List of primes by type
n!! + 1 or n!! - 1
2
3
7
47
383
Double factorial numbers ( +1 or -1 )
0
= 1!! - 1
2
= 1!! + 1
prime number
1
= 2!! - 1
3
= 2!! + 1
prime number
2
= 3!! - 1
prime number
4
= 3!! + 1
=
2
2
7
= 4!! - 1
prime number
9
= 4!! + 1
=
3
2
14
= 5!! - 1
=
2
*
7
16
= 5!! + 1
=
2
4
47
= 6!! - 1
prime number
49
= 6!! + 1
=
7
2
104
= 7!! - 1
=
2
3
*
13
106
= 7!! + 1
=
2
*
53
383
= 8!! - 1
prime number
385
= 8!! + 1
=
5
*
7
*
11
944
= 9!! - 1
=
2
4
*
59
946
= 9!! + 1
=
2
*
11
*
43
3839
= 10!! - 1
=
11
*
349
3841
= 10!! + 1
=
23
*
167
HOME
Primes from 1 to 10000
Primes from 10k to 100k
List of primes by type