17
This number is a prime.
Just showing those entries submitted by 'Poo Sung': (Click here to show all)
 |
| Prime Numbers CD Image J. Neptune © 1994 |
(17^17+1)/(17+1) is prime. [Poo Sung]
17 = 2+3+5+7 is the smallest emirp among sums of
consecutive primes. Note that the reverse 71 = 19+23+29 is
also such a prime. [Poo Sung]
There are 17 standard-form types of quadratic surfaces (quadrics). [Poo Sung]
The smallest prime p such that p#+1 and p#-1 are both
composite. [Poo Sung]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell