The book is now available! 1409
(another Prime Pages' Curiosity)
Prime Curios!

Valid HTML 4.01!

Curios: Curios Search:
 

Participate:
Share
GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ 1409 contains no prime digits. pi(1409) equals 223 and contains all prime digits. pi(223) equals 48 with no prime digits. Note that 1409 is the smallest prime with this property. [Punches]

+ The smallest emirp whose digits are distinct square digits. Note that its reversal is the largest such emirp. [Loungrides]

+ Your best chance of being born in a prime number year in the past millennium was to have been born in the 15th century (17 prime number years, from 1409 to 1499). [Tammet]

+ The first emirp p such that 2p+1, 3p+2, and 4p+3 are prime. [Loungrides]

+ The only known number whose 8th power can be written as the sum of eight 8th powers. [Gudipati]

+ Each of the states North Dakota, Rhode Island, and Wyoming have just one area code for the state and they are 701, 401, 307, respectively, and each is a prime. Curiously, the sum of the three codes is an emirp (which happens to be a twin prime). [Green]

+ The first multidigit prime (emirp) in the sequence of pentanacci numbers whose predermined terms are the odd digits. [Loungrides]

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

  To link to this page use /curios/page.php?number_id=6318



Prime Curios! © 2000-2019 (all rights reserved)  privacy statement   (This page was generated in 0.0072 seconds.)