N=sum of primes between smallest and largest prime factor of N (inclusive).
Find all possible values for the composite number N below 300.
The square ABCD has side length 2*sqrt2.
A circle with centre A and radius 1 is drawn. A second circle with centre C is drawn so that it just
touches the 1st circle at point P on AC .
Determine the total area of the
regions inside the square but outside the two circles.
Source: one of Mayhem problems