|
|
|
Curios:
Curios Search:
Participate:
|
In 1987, Chris K. Caldwell defined a deletable prime to be a
prime in which you can delete the digits one at a time in some order
and get a prime at each step:
To link to this page use http://primes.utm.edu/curios/page.php?number_id=321
Prime Curios! © 1999-2009 (all rights
reserved)
|