Let n be the largest integer that is the product of exactly 3 distinct prime number d,e, and 10d+e, where d and e are single digits. What is the sum of the digits of n?
(A) 12 (B) 15 (C) 18 (D) 21 (E) 24
ANSWER: A
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Let n be the largest integer that is the product of exactly 3 distinct prime number d,e, and 10d+e, where d and e are single digits. What is the sum of the digits of n?
(A) 12 (B) 15 (C) 18 (D) 21 (E) 24
ANSWER: A