
Curios:
Curios Search:
Participate: 
All primes less than or equal to this prime of the form 10...07 are also emirps. Thus, 17, 107, 10007, 100000007, and 1000000007 are all emirps.) [Patterson]
The first prime greater than one billion. [Siegenthaler] This prime and its reversal are the only pair of extremely naughty emirps in which number of zeros is equal to the sum of the end digits. (An extremely naughty prime has all digits zero, except for the end digits.) [Loungrides]
(There is one curio for this number that has not yet been approved by an editor.)
Prime Curios! © 20002017 (all rights
reserved)
