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