If both 2^2 and 3^4 are factors of the number a*4^3*6^2*13^11, then what is the smallest possible value of a?
Choose one
A) 6
B) 9
C) 12
D) 15
E) 18
The number a must include at least 3^2 = 9   The answer is 9.
<result>B</result>
If both 2^2 and 3^4 are factors of the number a*4^3*6^2*13^11, then what is the smallest possible value of a?