MathRevolution wrote:
[GMAT math practice question]
The sum of the squares of two prime numbers is \(173\). What is the sum of the two prime numbers?
\(A. 5\)
\(B. 8\)
\(C. 10\)
\(D. 15\)
\(E. 16\)
squares have units digit of 0,1,4,5,6, or 9
only units digits that sum to 3 are 4 and 9
173-2^2=169=13^2
2+13=15
D
...
