|
|
|
Curios:
Curios Search:
Participate:
|
Replace any single digit of 31114073 with a 9 and the result is always prime. [Luhn]
To link to this page use http://primes.utm.edu/curios/page.php?number_id=755
Prime Curios! © 1999-2009 (all rights
reserved)
|