Prime Curios!: 1097

1097
(another Prime Pages' Curiosity)

Curios:

Index
Keywords
Home
Glossary
The book!
Previous
Next
Random

Curios Search:
Participate:

Mail Editor
Submit Curio
Prime Puzzio
Test Number

The largest known number such that (17^n - 5^n)/12 is prime. [Russo]

The smallest prime (emirp) that is separated from the smallest prime by ten iterations of the Euler phi function: 1097 --> 1096 --> 544 --> 256 --> 128 --> 64 --> 32 --> 16 --> 8 --> 4 --> 2. [Beedassy]

The smallest balanced emirp such that its nearest primes above and below, i.e., 1091 and 1103, are also emirps. [Silva]

(There are 3 curios for this number that have not yet been approved by an editor.)

To link to this page use http://primes.utm.edu/curios/page.php?number_id=7741