Question 32
The sum of the prime factors of 1729 is
(A) 13
(B) 19
(C) 32
(D) 39
We have, 1729
Prime factors of 1729
Thus, the prime factors of 1729=7×13×19
∴ Sum of the prime factors of 1729 = 7+13+19 = 39
Hence the correct option is D.