The book is now available! 12345...82931 (51-digits)
(just those submitted by Haga)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
                    1 2345678910 1112131415 1617181920 2122232425 2627282931

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

+ The concatenated dates of the month without 30 is prime. Interesting that if you insert the number 30, you find that the new composite has a prime divisor of 29, the last date in a leap year! Proved prime by APRT-CLE. [Haga]




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