The largest prime p less than 1000 such that e^(pi*sqrt(p)) differs from an integer by less than 0.0001. [Rupinski]
A number that can be expressed as both a factorial prime (6! - 1) and as an abundant number less one. [Patterson]
The first consecutive primes up to 719 will form a Smarandache-Wellin prime if concatenated in increasing order.
The smallest factorial prime of the form n!-1 such that n-1 is a factorial prime of the same form. [Capelle]
The number of rooted trees with 10 nodes and also the number of ways of arranging 9 nonoverlapping circles. [Beedassy]
The hour and second hands of an analog clock align exactly 719 times every twelve hours. [Rosulek]
A Balog cube is an n-by-n-by ... by-n
array of primes, where each line of n primes parallel
to any edge is an arithmetic progression. The largest prime
in the smallest 3-by-3-by-3 cube is 719.
47 383 719 149 401 653 251 419 587
179 431 683 173 347 521 167 263 359
311 479 647 197 293 389 83 107 131
[Granville]
The number of days that have elapsed between the discovery of the 44th and 45th Mersenne primes. [Vrba]
To link to this page use http://primes.utm.edu/curios/page.php?number_id=2804
|
