
Curios:
Curios Search:
Participate: 
The smallest prime of the form 10^{p}  p, where p is prime. [Luhn]
The Schleicher K7 is a vintage twoseat glider with three axis controls which would remain airborne for approximately five minutes off a 997 foot winch launch in still air. [Croll] "Nine hundred and ninetyseven" is the largest oban (short for " 'o' banned ") prime since primes beyond it use the word "thousand(s)" and/or the suffix "illion(s)" in their names. [Beedassy] The sum of digits of the largest 3digit prime (997) provides the number prime less than or equal to the largest 2digit prime (97). This is not true for any other tier of ndigit numbers. [Green] The smallest prime whose sum of digits is an odd composite number. [Loungrides]
(There is one curio for this number that has not yet been approved by an editor.) To link to this page use /curios/page.php?number_id=1561
Prime Curios! © 20002015 (all rights
reserved)
