The book is now available! 1187
(just those submitted by Mix)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share

Just showing those entries submitted by 'Mix': (Click here to show all)

+ 1187 concatenated with either the previous prime (1181) in order or the next prime (1193) in order is prime. This is the smallest 4-digit number with this property. [Mix]




Prime Curios! © 2000-2017 (all rights reserved)