turkey-yks 2011 Q7

turkey-yks · Other · ygs Number Theory Divisibility and Divisor Analysis

If the product $\mathrm{x} \cdot (10!)$ is the square of a positive integer, what is the smallest value that x can take?
A) 21 B) 7 C) 5 D) 10 E) 14

If the product $\mathrm{x} \cdot (10!)$ is the square of a positive integer, what is the smallest value that x can take?

A) 21
B) 7
C) 5
D) 10
E) 14